CQG+ another great reason to publish in CQG!

Dear Colleagues,

I’m delighted to announce the formal launch of CQG+, CQG’s companion website: CQGplus.com

This is a great place to find out about the latest papers to be rated ‘high quality’ by your peers. I recommend signing up to follow CQG+. This will allow you to receive email alerts (at your desired frequency) of the best of the latest gravitational physics research.

Publish your next great paper in CQG for the chance to benefit from promotion in CQG+

Best wishes

Adam Day
Publisher
Classical and Quantum Gravity and CQG+

New CQG focus issue on Astrophysical Black Holes edited by David Merritt and Luciano Rezzolla

Dear Colleagues,

It is my pleasure to present this focus issue on Astrophysical Black Holes, guest edited by David Merritt and Luciano Rezzolla:

http://j.mp/180WQ6e

The issue features 10 articles which cover recent developments in the observational and theoretical understanding of black holes – both stellar mass and supermassive – as well as black holes in alternate theories of gravity. The context is astrophysical; that is: how black holes form in, and interact with, their stellar and galactic environments, and the observational consequences of that interaction.

The full issue is available from IOPscience for free for the next 3 months. I hope you will enjoy reading the articles and that they will be useful references for your future research.

Kind regards,

Ben Sheard
Publishing Editor
Classical and Quantum Gravity
IOP Publishing
iopscience.org/cqg

New CQG focus issue on Pulsar Timing Arrays edited by M A Bizouard, F Jenet, R Price and C M Will

The latest CQG focus issue is titled: ‘Pulsar Timing Arrays’ and is guest edited by M A Bizouard, F Jenet, R Price and C M Will.

Gravitational-wave detection via a pulsar timing array (PTA) is now entering the realm of practicality. This focus issue includes an overview of the field and articles describing the various detection efforts that are currently underway. Other articles in the issue discuss the potential for astrophysics and tests of general relativity using PTAs.

The full issue is available from IOPscience for free for the next 3 months.

http://j.mp/1hHdeKK

Best wishes

Adam Day
Publisher
Classical and Quantum Gravity

New CQG focus issue on Scalars and Gravity edited by David Langlois

I am very pleased to bring you this special issue on ‘Scalars and Gravity’ guest edited by David Langlois.

http://j.mp/19mB7p0

This issue presents several active directions of research where the interplay between scalar fields and gravity is essential.

The issue features articles on a range of topics including inflationary models based on scalar fields, quintessence, chameleon fields, and generalized Galileon theories.

We hope that these articles will offer offer a stimulating perspective on several recent and active research topics that mix scalar fields with gravity.

Best wishes

Adam Day
Publisher
Classical and Quantum Gravity
cqg[AT]iop.org

New CQG focus issue on Massive Gravity edited by Shinji Mukohyama

I am very pleased to bring you this focus issue on ‘Massive Gravity’ guest edited by Shinji Mukohyama.

http://j.mp/1daT1tF

The aim of the issue is to highlight some of the recent developments in massive gravity and their phenomenological implications.

We hope that these articles will be of interest and beneficial to your research.

Best wishes

Adam Day
Publisher
Classical and Quantum Gravity
cqg[AT]iop.org

CQG Focus Issue on “Higher Spins and Holography” guest edited by Per Kraus and Simon F Ross

I am very pleased to bring you this focus issue on ‘Higher Spins and Holography’ guest edited by Per Kraus and Simon F Ross. http://j.mp/100eDpc

Higher spin gravity has gained broader appeal in recent years due to its appearance in the AdS/CFT correspondence. I hope that you will find this focus issue of particular interest and encourage you to share and circulate this with your colleagues and peers.

I hope that you will publish your next paper with CQG http://bit.ly/Wut54Y and I look forward to working with you soon.

Best wishes,

Adam Day
Publisher
Classical and Quantum Gravity
cqg@iop.org

P.S. Don’t forget to read our Highlights of 2011-2012 http://bit.ly/vrrUyh selected by the Editorial Board, which are free to read until 31 December 2013.

New CQG focus issue: Applications of holography to condensed matter physics

We are very pleased to bring you this focus issue on applications of holography to condensed matter systems.

This focus issue strengthens the connections between holography and other gravitational research.

We hope that you will find this focus issue of particular interest and encourage you to share this with your colleagues and peers. The articles in the focus issue will be free to download for 3 months from the date of publication.

We hope that you will publish your next paper with CQG and look forward to working with you soon.

Best wishes,

Adam Day
Publisher
Classical and Quantum Gravity

New CQG focus issue: Tests of the weak equivalence principle

Dear colleagues,

We are very pleased to bring you the latest CQG focus issue: tests of the weak equivalence principle, which is currently free to read on the CQG website.

http://j.mp/MywInA

This focus issue brings together a set of invited papers which explore the many aspects of testing the weak equivalence principle (WEP). An introductory article laying out the theoretical context is followed by articles on current laboratory experiments. Four articles describe the latest results from lunar laser ranging and binary pulsar timing, while two articles discuss progress toward testing the free fall of anti-Hydrogen. The final four articles address future experiments to be carried out in space on orbiting or sub-orbital platforms.

We hope that you will find this focus issue to be of interest. We invite you to publish your next paper with CQG and look forward to working with you soon.

Best wishes,

Clifford M Will
Clive C Speake
Guest Editors
Classical and Quantum Gravity

2012 IOP Gravitational Physics Group Thesis Prize (sponsored by CQG)

The 2012 Institute of Physics Gravitational Physics Group Thesis Prize, sponsored by Classical and Quantum Gravity (CQG), will be made for excellence in postgraduate research and communication skills in gravitational physics. All members of the IOP Gravitational Physics Group who passed their PhD viva voce exam between 30 September 2010 and 31 December 2012 are entitled to enter the competition.

Note that the viva period for eligible candidates is longer than in previous years.

The winner will be awarded £500 and they will be invited to submit a paper to CQG based on the winning thesis which, if accepted, will be made a ’select article’ in CQG. Furthermore, the winner will be given the opportunity to present their work at one of the UK BritGrav meetings.

Anyone (student or otherwise) can nominate a candidate (including the candidate themselves). If you have someone in mind, please send an email to the IOP Gravitational Physics Group secretary (David Burton at d.burton[AT]lancaster.ac.uk) containing the candidate’s contact details and the committee will encourage them to enter the competition. The candidate must be a member of the IOP Gravitational Physics Group, and will be asked to provide their IOP membership number.

Please note that the student’s external PhD examiner must be willing to comment on the student’s research, quality of the student’s thesis and the student’s ability to cogently communicate their work (evidenced by their viva performance and/or seminars). Students are advised to consult their external examiner before entering the competition.

John Miller awarded 2011 IOP Gravitational Physics Group thesis prize co-sponsored by CQG

I am delighted to announce that the 2011 IOP Gravitational Physics Group’s thesis prize, co-sponsored by Classical and Quantum Gravity, has been awarded to Dr John Miller, currently at Australian National University (ANU), for his excellent work on non-Gaussian beams and optomechanical parametric instabilities in gravitational wave detectors and their impact on designing future gravitational wave detectors.

Dr Miller completed his thesis at Glasgow University under the supervision of Prof. Ken Strain and Prof. Norna Robertson

The thesis is available to download from Glasgow University’s website.

http://theses.gla.ac.uk/1869/

Details of the prize, including nomination instructions for the 2012 prize, can be found at the Gravitational Physics Group’s web page.

http://www.iop.org/activity/groups/subject/gp/prize/page_40694.html

Sincerely

Clifford M Will
Editor in Chief
Classical and Quantum Gravity

Read the New CQG Highlights of 2010-2011 for free

Dear Colleagues,

It is my pleasure to announce the publication of Classical and Quantum Gravity’s Highlights of 2010-2011. These articles were selected by the Editorial Board of Classical and Quantum Gravity (CQG) and represent some of the most interesting recent work in gravitational physics.

http://bit.ly/raNBFt

Articles featured in past CQG Highlights have been highly cited and are frequently downloaded. All selected articles will be free to download until the end of 2012.

The list includes fast-track communications, research papers, review articles and special issue contributions published between May 2010 and June 2011.

Be sure to pick up a copy of the latest CQG Highlights Brochure which will be available at gravitational physics meetings throughout 2012. The brochure contains summaries of all the highlighted articles as well as details of the journal’s ongoing activities including prize sponsorships and forthcoming special issues.

I invite you to submit your work to CQG and hope to see it promoted as a CQG Highlight in the future.

With best wishes

Ben Sheard
Publishing Editor
Classical and Quantum Gravity

New focus issue on string cosmology free to read in CQG

Dear Colleagues,

We are delighted to announce that the new Classical and Quantum Gravity (CQG) focus issue on string cosmology is now free to read online.

http://iopscience.iop.org/0264-9381/28/20

This issue includes 10 specially invited papers from some of the top researchers in the field.

Guest Edited by Dr Vijay Balasubramanian and Professor Paulo Moniz, the focus issue appraises recent applications of string-theoretic and string-inspired ideas to the cosmos. The articles in this issue also survey a number of potentially promising directions for the future.

With best wishes,

Adam Day
Publisher
Classical and Quantum Gravity
iopscience.org/cqg

Read the latest CQG focus section on inhomogeneous cosmological models and averaging in cosmology

CQG’s latest focus section on inhomogeneous cosmological models and averaging in cosmology is now available to read on the CQG website:

http://iopscience.iop.org/0264-9381/28/16

The issue was edited by CQG Board Members Lars Andersson and Alan Coley.

The special section focuses on the physical state of the present universe and the problem of going beyond perturbation theory. The following topics are covered:
- a general overview and a discussion of the relevant issues;
- inhomogeneous cosmological models (including non-Copernican models);
- the current observations and physics of the universe and
- averaging and backreaction.

I would like to thank the guest editors and all of the authors and referees of the focus section for their contributions to this excellent issue of Classical and Quantum Gravity.

Yours sincerely

Adam Day
Publisher
Classical and Quantum Gravity

Quantum Gravity: the first 25 years. Read the focus section published in Classical and Quantum Gravity.

We invite you to read-for-free the CQG focus section reviewing 25 years of quantum gravity research.

http://iopscience.iop.org/0264-9381/28/15

This issue features 2 invited review articles from physicists who have been associated with String Theory and Loop Quantum Gravity from their inception. They were invited to write a retrospective review: What were the initial hopes? To what extent have these hopes been realised? What were the major successes, surprises, disappointments? The emphasis is on what has come OUT of the program rather than technical developments internal to the program. We hope that the reader, whatever her persuasion, will be able to form a panoramic view of quantum gravity research today within these two programmes.

Yours sincerely

Joseph Samuel
Editorial Board Member
Classical and Quantum Gravity

Invited papers from GR19 now free-to-read in Classical and Quantum Gravity

Selected articles from the 19th International Conference on General Relativity and Gravitation (GR19) are now published and free-to-read in Classical and Quantum Gravity (CQG). I invite you to browse the collection: http://iopscience.iop.org/0264-9381/28/11

The GR19 conference covered all of the broad range of subjects in the scope of CQG. Hyperspace readers are therefore certain to find high quality work in the issue relevant to their own interests.

I take this opportunity to thank all authors, referees and particularly the guest editors, Profs D Marolf and D Sudarsky for all of their hard work which contributed to making this outstanding special issue possible.

Yours sincerely

Adam Day
Publisher
Classical and Quantum Gravity
cqg[AT]iop.org

2011 Gravitational Physics Group Thesis Prize sponsored by Classical and Quantum Gravity

Closing date for nominations: 31 October 2011

The 2011 Gravitational Physics Group Thesis Prize, sponsored by Classical and Quantum Gravity (CQG), will be made for excellence in postgraduate research and communication skills in gravitational physics. All members of the IOP Gravitational Physics Group who passed their PhD viva voce exam between 30 September 2009 and 1 October 2010 are entitled to enter the competition. The winner will be awarded £500 and they will be invited to submit a paper to CQG based on the winning thesis which, if accepted, will be made a ’select article’ in CQG. Furthermore, the winner will be given the opportunity to present their work at one of the UK BritGrav meetings.

Anyone (student or otherwise) can nominate a candidate (including the candidate themselves). If you have someone in mind, please send an email to the IOP Gravitational Physics Group secretary (David Burton at d.burton-at-lancaster.ac.uk) containing the candidate’s contact details and the committee will encourage them to enter the competition. The candidate must be a member of the IOP Gravitational Physics Group, and will be asked to provide their IOP membership number.

Please note that the student’s external PhD examiner must be willing to comment on the student’s research, quality of the student’s thesis and the student’s ability to cogently communicate their work (evidenced by their viva performance and/or seminars). Students are advised to consult their external examiner before entering the competition.

For information on how to enter the competition please click ‘Group Prize’ on the IOP Gravitational Physics Group web page http://gp.iop.org/

Excellent research published online: Newtonian Gravity and the Bargmann Algebra

Dear Colleagues,

It gives me great pleasure to notify you of the publication of the above article in Classical and Quantum Gravity.

TITLE: Newtonian Gravity and the Bargmann Algebra
AUTHORS: Roel Andringa, Eric Bergshoeff, Sudhakar Panda and Mees de Roo

This article received very positive comments and a high quality rating from its referees. The article is available to download from IOPscience.

Please find below a summary by the authors of the developments made in this article:

‘Newton–Cartan gravity is a geometric formulation of Newtonian gravity, based on the nonrelativistic limit of general relativity. In our paper we confront this traditional view of Newton–Cartan gravity with a different approach that starts from the Bargmann algebra, a centrally extended version of the Galilei algebra. This approach emphasizes the analogy with the formulation of general relativity as a gauge theory of the Poincaré algebra. The algebraic method suggests a number of generalizations, for instance to conformal algebras, and to the Newton–Hooke algebra, which would lead to classical gravity induced by nonrelativistic strings.’

Yours sincerely

Rachel Lawless
Publishing Editor
Classical and Quantum Gravity

Drinks reception sponsored by Classical and Quantum Gravity, Glasgow University, 3 April, 6pm

Participants of IOP’s Nuclear and Particle Physics Divisional (NPPD) conference at Glasgow University (4-7 April) are invited to attend an opening drinks reception sponsored by Classical and Quantum Gravity (CQG).

The reception will begin at 6pm on Sunday 3 April in the Hunterian Gallery, opposite the main university building.

I look forward to seeing you there!

Adam Day
Publisher

Dr Barry Wardell to receive thesis prize from IOP’s Gravitational Physics Group co-sponsored by CQG

It gives me great pleasure to announce the award of the 2010 IOP Gravitational Physics Group’s Thesis Prize to Dr Barry Wardell of the Albert Einstein Institute at Golm. As Editor-in-Chief of Classical and Quantum Gravity, which co-sponsors the prize, I am delighted to see it going to such a deserving recipient.

The award is made for the development of ground-breaking computational techniques for obtaining highly accurate expressions for Green functions on curved spacetime.

Dr Wardell completed his thesis at University College Dublin in Ireland. The thesis: “Green functions and radiation reaction from a spacetime perspective” is available for download from the ArXiv: http://arxiv.org/abs/0910.2634

The prize will be awarded at IOP’s Nuclear and Particle Physics Divisional (NPPD) conference at Glasgow University on 6 April. Dr Wardell will receive the prize shortly before his talk at 3.30pm in the Humanities Lecture Theatre.

Yours sincerely

Clifford M Will
Editor in Chief
Classical and Quantum Gravity

High quality article in Classical and Quantum Gravity

Dear Colleagues,

TITLE: Lost in translation: topological singularities in group field theory
AUTHORS: Razvan Gurau

It gives me great pleasure to notify you of the publication of the above article in Classical and Quantum Gravity. This article received very positive comments and a high quality rating from its referees. The article is available to download here: http://herald.iop.org/link/4107

Please find a summary of the developments made in this article below:

Random matrix models generalize in higher dimensions to Group Field Theories (GFTs) whose Feynman graphs are dual to gluings of simplices. In this paper we prove that the effective behavior of generic GFTs is dominated by singular graphs, not dual to normal simplicial pseudo manifolds. This very serious problem brings into question their viability as quantum field theories. We prove however that, fortunately, the recently introduced “colored” GFT models circumvent this problem, generating only graphs dual to pseudo manifolds. We conclude that they are the correct starting point for the study of GFTs as quantum field theories.

Yours sincerely

Adam Day
Publisher
Classical and Quantum Gravity

Read the Classical and Quantum Gravity Highlights of 2009-2010

Dear Colleagues,

I am delighted to announce the publication of Classical and Quantum Gravity’s Highlights of 2009-2010. The articles in the list, published between May 2009 and June 2010, were selected by the Editorial Board of Classical and Quantum Gravity (CQG) as a representation of the best recent work in gravitational physics.

http://herald.iop.org/link/4077

The list includes research Papers, Fast Track Communications, review articles and special issue contributions. The selected articles have also proven popular with our readers and have been frequently downloaded.

Look out for the CQG Highlights Brochure in 2011, which will be available at gravitational physics meetings. The brochure summarises the highlighted papers and will tell you more about the journal’s ongoing activities including prize sponsorships and forthcoming special issues.

I invite you to submit your work to CQG and look forward to seeing it promoted as a CQG Highlight in the future.

Yours sincerely

Adam Day
Publisher
Classical and Quantum Gravity

Read the 2010 CERN Winter School in Classical & Quantum Gravity

As a researcher with an interest in gravitational physics, we invite you to read the latest Classical & Quantum Gravity special section ‘Lectures from the CERN Winter School on Strings, Supergravity and Gauge Theory, CERN, 25 – 29 January 2010′.

The articles included within the special section are free to read online until 18 April 2011, and can be accessed by visiting http://herald.iop.org/link/4003

Please feel free to pass this message on to friends and colleagues.

Yours sincerely,

Adam Day
Publisher, Classical and Quantum Gravity
cqg@iop.org
iopscience.org/cqg

Read the Classical & Quantum Gravity GWDAW-14 Special Issue

You may be interested in reading the Classical & Quantum Gravity special issue featuring selected articles from the ‘The 14th Gravitational Wave Data Analysis Workshop’ (GWDAW-14), Rome, Italy, 26 – 29 January 2010.

The articles included within the special issue are free to read online until 22 March 2011, and can be accessed by visiting http://herald.iop.org/link/4002

You may also be interested to know that Journal of Physics Conference Series, the open access conference proceedings publication, has publish additional papers from this conference http://herald.iop.org/link/4004

Please feel free to mention this special issue to friends and colleagues.

Yours sincerely,

Adam Day
Publisher, Classical and Quantum Gravity
cqg@iop.org
www.iopscience.org/cqg

———————–
CQG Highlights of 2009

The collection of Classical & Quantum Gravity’s Highlights of 2008–2009 is still free to read until 01 November 2010, and can be accessed through the following link: http://herald.iop.org/link/4001

2010 Gravitational Physics Group Thesis Prize sponsored by Classical and Quantum Gravity

Second call for nominations 2010

Closing date for nominations: 17th December 2010

The 2010 Gravitational Physics Group Thesis Prize, sponsored by Classical and Quantum Gravity (CQG), will be made for excellence in postgraduate research and communication skills in gravitational physics. All members of the IOP Gravitational Physics Group who passed their PhD viva voce exam between 30 September 2008 and 1 October 2009 are entitled to enter the competition. The winner will be awarded £500 and they will be invited to submit a paper to CQG based on the winning thesis which, if accepted, will be made a ‘select article’ in CQG. Furthermore, the winner will be given the opportunity to present their work at one of the UK ‘BritGrav’ meetings.

Anyone (student or otherwise) can nominate a candidate (including the candidate themselves). If you have someone in mind, please send an email to the IOP Gravitational Physics Group secretary (David Burton at d.burton-at-lancaster.ac.uk) containing the candidate’s contact details and the committee will encourage them to enter the competition. The candidate must be a member of the IOP Gravitational Physics Group, and will be asked to provide their IOP membership number.

Please note that the student’s external PhD examiner must be willing to comment on the student’s research, quality of the student’s thesis and the student’s ability to cogently communicate their work (evidenced by their viva performance and/or seminars). Students are advised to consult their external examiner before entering the competition.

For information on how to enter the competition please click ‘Group Prize’ on the IOP Gravitational Physics Group web page http://gp.iop.org/

Excellent research published online: Combining gravity with the forces of the standard model on a cosmological scale

Dear Colleagues,

TITLE: Combining gravity with the forces of the standard model on a cosmological scale
AUTHORS: Claus Gerhardt

It gives me great pleasure to notify you of the publication of the above article in Classical and Quantum Gravity.

This article received very positive comments and a high quality rating from its referees. The article is available to download here:

http://herald.iop.org/branding/m19/rzl/$CONTACT_ID/link/3780

Please find a summary of the developments made in this article written by the authors below:

We prove the existence of a spectral resolution of the Wheeler-DeWitt equation when the underlying spacetime is a Friedman universe with flat spatial slices and where the matter fields are comprised of the strong interaction, with SU(3) replaced by a general SU(n), n >= 2, and the electro-weak interaction.

The wave functions are maps from R[4n+10] to a subspace of the antisymmetric Fock space, and one noteworthy result is that, whenever the electro-weak interaction is involved, the image of an eigenfunction is in general not one dimensional, i.e., in general it makes no sense specifying a fermion and looking for an eigenfunction the range of which is contained in the one dimensional vector space spanned by the fermion

Yours sincerely

Adam Day
Publisher
Classical and Quantum Gravity

Excellent research published online: Accurate light-time correction due to a gravitating mass

Dear Colleagues,

TITLE: Accurate light-time correction due to a gravitating mass
AUTHORS: Neil Ashby, Bruno Bertotti

It gives me great pleasure to notify you of the publication of the above article in Classical and Quantum Gravity.

This article received very positive comments and a high quality rating from its referees. Please find a summary of the developments made in this article below:

The time delay and deflection of light passing between two points near a spherical mass of gravitational radius m, are expressed to second order in m in terms of endpoint positions and angle subtended at the source by the endpoints, instead of unknown quantities such as the closest approach distance b. We minimize Fermat’s action functional and solve the eikonal equation for a null geodesic. In a close superior conjunction the second-order correction contains an enhanced part of order m2R/b2, where R is of the order of the endpoint distances from the sun. We compare these results to previous calculations, in particular with the second-order terms introduced in NASA’s Orbit Determination Program. We use asymptotic series to determine which higher-order terms are important.

The results are significant for understanding the results of the Cassini light-time experiment, and for future missions whose purpose may include measuring the PPN parameter gamma.

Yours sincerely

Adam Day
Publisher
Classical and Quantum Gravity

New focus section on cosmological perturbations in Classical and Quantum Gravity

It is with great pleasure that we announce the publication of the following focus section in Classical and Quantum Gravity (CQG):

Focus section on non-linear and non-Gaussian cosmological perturbations, dedicated to the memory of Lev Kofman
Guest editors: Misao Sasaki and David Wands
http://iopscience.iop.org/0264-9381/27/12

In recent years there has been a resurgence of interest in the study of non-linear perturbations of cosmological models. This focus section will be of interest to theoretical physicists and astrophysicists alike interested in understanding and interpreting recent developments in cosmological perturbation theory and models of the early universe. The section is dedicated to the memory of Lev Kofman (1957–2009), an enthusiastic pioneer of inflationary cosmology and non-Gaussian perturbations.

This is CQG’s first ever focus section.  A focus section is a collection of specially invited papers on a subject of current interest.  Unlike other special issues, it is not based on a conference.  We are sure you will agree with the referees of the issue who reported that the contributions are timely and of a very high quality.

We take this opportunity to thank all of the authors, referees and particularly the guest editors who gave their time and expertise to create this excellent issue.

The focus section will be free to read for 6 months from date of publication.  We invite you to read the articles on the new IOPscience service!
http://iopscience.iop.org/0264-9381/27/12

Yours sincerely,

Adam Day
Publisher
Classical and Quantum Gravity
iopscience.org/cqg