We point out that negative specific heat at high energies is a characteristic feature of many ##IMG## [http://ej.iop.org/images/1751-8121/53/42/424001/aab99eeieqn4.gif] {$T\bar{T}$} deformations, both in the original d = 2 case and in d = 1 quantum mechanical cousins. This paper is a contribution to the memorial volume in honor of P G O Freund.

中文翻译：

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关于## IMG ## [http://ej.iop.org/images/1751-8121/53/42/424001/toc_aab99eeieqn1.gif] {$ T \ bar {T} $}变形的热力学稳定性的评论

我们指出，高能量下的负比热是许多## IMG ##的特征[http://ej.iop.org/images/1751-8121/53/42/424001/aab99eeieqn4.gif] {$在原始d = 2的情况下和在d = 1的量子力学表亲中都发生T \ bar {T} $}变形。本文是对纪念PGO Freund的纪念作品的贡献。