On the relevance of the thermal scalar

Mertens, Thomas G.; Verschelde, Henri; Захаров, В. И.

doi:10.1007/jhep11(2014)157

Cited by 18 publications

(33 citation statements)

References 57 publications

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“…Our goal is to use this continuation of the cigar CFT to tell us something about the continuation for the flat cones. 21 It seems difficult to make this point more firmly: the full stress tensor of the string gas seems difficult to obtain; we only obtained the most dominant contribution in [57]. The free energy however is directly linked to the canonical internal energy which is to be interpreted as the spatial integral of T 0 0 and the result we obtain is then only in the weaker integrated sense.…”

Section: Continuation Of the Flat Orbifold Inherited From The Cigar Omentioning

confidence: 75%

Perturbative string thermodynamics near black hole horizons

Mertens

Verschelde

Захаров

2015

J. High Energ. Phys.

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Abstract:We provide further computations and ideas to the problem of near-Hagedorn string thermodynamics near (uncharged) black hole horizons, building upon our earlier work [1]. The relevance of long strings to one-loop black hole thermodynamics is emphasized. We then provide an argument in favor of the absence of α -corrections for the (quadratic) heterotic thermal scalar action in Rindler space. We also compute the large k limit of the cigar orbifold partition functions (for both bosonic and type II superstrings) which allows a better comparison between the flat cones and the cigar cones. A discussion is made on the general McClain-Roth-O'Brien-Tan theorem and on the fact that different torus embeddings lead to different aspects of string thermodynamics. The black hole/string correspondence principle for the 2d black hole is discussed in terms of the thermal scalar. Finally, we present an argument to deal with arbitrary higher genus partition functions, suggesting the breakdown of string perturbation theory (in g s ) to compute thermodynamical quantities in black hole spacetimes.

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Section: Continuation Of the Flat Orbifold Inherited From The Cigar Omentioning

confidence: 75%

Perturbative string thermodynamics near black hole horizons

Mertens

Verschelde

Захаров

2015

J. High Energ. Phys.

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“…In the microcanonical ensemble, the dominant contribution at very high energy E of the energy density ε(ρ) and radial pressure p(ρ) of the string gas are given by [5] ε(ρ) = 2 E Aaα…”

Section: The Thermal Scalar In Rindler Spacementioning

confidence: 99%

The long string at the stretched horizon and the entropy of large non-extremal black holes

Verschelde¹,

Mertens²,

Захаров³

2017

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017)

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Highly excited or high-temperature string gases are dominated by long strings. The avatar of this process on the thermal manifold is the singly wound state (thermal scalar) that becomes massless at the critical Hagedorn temperature. This logic can be extended to curved spacetime, and in particular to Rindler space where one finds that the Hagedorn temperature equals the Hawking temperature of the black hole itself. This results in a long random walk surrounding the event horizon localized at string length distance. Long strings also make their appearance when throwing in strings into the black hole as shown by Susskind long ago. The string elongates as it approaches the horizon. We combine and compare these two pictures to discuss how the thermally equilibrated long string gas accounts for the black hole entropy, and provide a qualitative picture for Hawking radiation.

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“…Let us now consider a long string gas in the microcanonical ensemble with energy E. In [26,30] it was shown that the average value of the Euclidean energy-momentum tensor at high energy is given by the energy-momentum tensor of the thermal scalar field theory, evaluated on the zero-mode:…”

Section: Jhep02(2016)041mentioning

confidence: 99%

“…The origin of the pressure however is not kinetic but entropic. As one can check [30], a microcanonical ensemble describing a long string gas with energy E at infinity (which means ρ = 1/a where the temperature equals 1/β):…”

Section: Jhep02(2016)041mentioning

confidence: 99%

The long string at the stretched horizon and the entropy of large non-extremal black holes

Mertens

Verschelde

Захаров

2016

J. High Energ. Phys.

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We discuss how long strings can arise at the stretched horizon and how they can account for the Bekenstein-Hawking entropy. We use the thermal scalar field theory to derive the asymptotic density of states and corresponding stress tensor of a microcanonical long string gas in Rindler space. We show that the equality of the Hagedorn and Hawking temperatures gives rise to the tree-level entropy of large black holes in accordance with the Bekenstein-Hawking-Wald formula.

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On the relevance of the thermal scalar

Cited by 18 publications

References 57 publications

Perturbative string thermodynamics near black hole horizons

Perturbative string thermodynamics near black hole horizons

The long string at the stretched horizon and the entropy of large non-extremal black holes

The long string at the stretched horizon and the entropy of large non-extremal black holes

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