报告题目：A primary investigation on wormhole and the thermodynamic arrow of time

报告人：冼卓宇博士（中科院理论所）

报告时间：2019年4月17号（周三）15: 30

报告地点：天津大学新校区理学院32教256

 

报告摘要：In classical thermodynamic, heat cannot spontaneously pass from a colder system to a hotter system, which is called the thermodynamic arrow of time. However, if the initial states are entangled, the direction of the thermodynamic arrow of time may not be guaranteed. Here we take the thermo field double state as the initial state and assume its gravity duality to be the eternal black hole. The quantum entanglement between the two systems is captured by the wormhole connecting the two black holes. We make their temperatures different and then turn on the interaction between them. After investigating the changes of energies, we find that the thermodynamic arrow of time has not been reversed for the interactions we have considered. But the existence of the wormhole supports some new channels of energy transfer, which are related to the effect of traversable wormhole. With a proper interaction, those channels can lead to energy transfer from the colder black hole to the hotter black hole, although they are not strong enough to reverse the whole thermodynamic arrow of time.

报告人简历：中科院理论所博士后，中科院高能所博士，华南理工大学学士。

代表作：

[1] Ling, Yi, Peng Liu, Chao Niu, Jian-Pin Wu, and Zhuo-Yu Xian. “Holographic Superconductor on Q-Lattice.” JHEP 1502, 059 (2015)

[2] Ling, Yi, Zhuo-Yu Xian, and Zhenhua Zhou. “Holographic Shear Viscosity in Hyperscaling Violating Theories without Translational Invariance.” JHEP 1611, 007 (2016)

[3] Ling, Yi, and Zhuo-Yu Xian. “Holographic Butterfly Effect and Diffusion in Quantum Critical Region.” JHEP 1709, 003 (2017)

[4] Jian, Shao-Kai, Zhuo-Yu Xian, and Hong Yao. “Quantum Criticality and Duality in the SYK/AdS$_2$ Chain.” Phys. Rev. B 97, no. 20, 205141 (2018)