Comments on: 297. Exact gravity dual of a gapless superconductor

By: 305. First two weeks of March on NEQNET

305. First two weeks of March on NEQNET — Sat, 14 Mar 2009 20:37:32 +0000

[...] Exact gravity dual of a gapless superconductor, where George Koutsoumbas (Athens) explicitly demonstrates an model, whose field theory dual [...]

By: g.koutsoumbas

g.koutsoumbas — Fri, 13 Mar 2009 08:55:10 +0000

Hi Dmitry!

The temperature is . We have also tried to give some more colorful description of the phase transition.

Regards,
George

By: Dmitry

Dmitry — Thu, 12 Mar 2009 11:06:11 +0000

Hi George,

by the way, is the temperature in the system just the temperature of Hawking radiation? What does it mean then that “the scalar black hole absorbs energy from the heat bath”?

Cheers,
Dmitry.

By: g.koutsoumbas

g.koutsoumbas — Wed, 11 Mar 2009 10:20:27 +0000

Hi Dmitry,

Yes, you are right.

Best regards,
George

By: g.koutsoumbas

g.koutsoumbas — Wed, 11 Mar 2009 10:18:42 +0000

Dear Instanton,

Thank you for your comment. With respect to the lack of back reaction we have been refering to the work of Hartnol, Herzog and Horowitz, Phys. Rev.Lett. 101 031601.
Best regards,
George

By: Dmitry

Dmitry — Tue, 10 Mar 2009 12:08:58 +0000

Dear Instanton,

glad that you did not forget us and drop by time after time

Cheers,
Dmitry.

By: Dmitry

Dmitry — Tue, 10 Mar 2009 11:59:37 +0000

Dear George,

thanks for the nice post! What kind of duality is it that you study – I noticed that you work with 4d gravity, so are you talking about ?

Cheers,
Dmitry.

By: Instanton

Instanton — Tue, 10 Mar 2009 09:04:07 +0000

hi George

At some point you say in the paper that matter does not backreact on the metric, so, the limit M_P\to\infty is taken, isn’t it? If this is so, what is the meaning to even discuss BH entropy which is inversely proportional to G?

Instanton