2013年3月
Thermodynamical Property of Entanglement Entropy for Excited States
PHYSICAL REVIEW LETTERS
- ,
- ,
- ,
- 巻
- 110
- 号
- 9
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.110.091602
- 出版者・発行元
- AMER PHYSICAL SOC
We argue that the entanglement entropy for a very small subsystem obeys a property which is analogous to the first law of thermodynamics when we excite the system. In relativistic setups, its effective temperature is proportional to the inverse of the subsystem size. This provides a universal relationship between the energy and the amount of quantum information. We derive the results using holography and confirm them in two-dimensional field theories. We will also comment on an example with negative specific heat and suggest a connection between the second law of thermodynamics and the strong subadditivity of entanglement entropy. DOI: 10.1103/PhysRevLett.110.091602
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevLett.110.091602
- ISSN : 0031-9007
- eISSN : 1079-7114
- Web of Science ID : WOS:000317186000001