报告题目：The emergence of time and temperature from separation of system and environment

报告人：Jan Michael Rost 教授，Max Planck Institute for the Physics of Complex Systems (德国马克斯普朗克复杂系统物理研究所)

报告时间：2024年4月18日（星期四），上午10：30-11：30

报告地点：致知楼3328会议室

报告摘要：

In contrast to the time-independent Schrödinger equation (TISE) which is fully quantized, the time-dependent Schrödinger equation (TDSE) contains time as a parameter, not as an operator. This parameter may be understood as a label, tagging system and environmental states relatively to each other. In the talk, I will derive the TDSE for a system from a time-independent solution for “everything” by conditioning  the full solution on a state on the environment, thereby fully taking into account the interaction of system and environment [1]. Our results are consistent with concepts for the emergence of time where interaction has been taken into account at the expense of a semiclassical treatment of the environment. Including the coupling between system and environment without approximation adds a missing link to the relational time approach introduced in a seminal paper by Page and Wootters 40 years ago [2], opening it to dynamical phenomena of interacting systems and entangled quantum states. Time permitting, I will sketch, how the relational perspective can be amended to include statistical mechanics with the help of complex relational time.

[1] Gemsheim & Rost, PRL 131, 140202 (2023)

[2] Page & Wootters, PRD 27, 29885 (1983)

报告人简介：

Jan Michael Rost，德国马克斯普朗克复杂系统物理研究所教授，国际著名理论物理学家。1990年获弗赖堡大学博士学位，1999年起任马克斯普朗克复杂系统物理研究所所长，2007年当选为美国物理学会会士。曾任Journal of Physics B主编，2019年起任Physical Review A主编。主要研究兴趣为有限系统在超冷超快等极端状态下的动力学行为。