The time in thermal time

The time in thermal time

Preparing general relativity for quantization in the Hamiltonian approach leads to the ‘problem of time’, rendering the world fundamentally timeless. One proposed solution is the ‘thermal time hypothesis’, which defines time in terms of states representing systems in thermal equilibrium. On this vie...

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Bibliographic Details
Main Author: Chua, Eugene Yew Siang
Other Authors: School of Humanities
Format: Article
Language:English
Published: 2025
Subjects:
Arts and Humanities
Physics
Quantum gravity
Spacetime emergence
Thermal time
Thermodynamics
C*-algebras
Modular group
Online Access:https://hdl.handle.net/10356/182576
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Institution: Nanyang Technological University
Language: English
Description
Summary:Preparing general relativity for quantization in the Hamiltonian approach leads to the ‘problem of time’, rendering the world fundamentally timeless. One proposed solution is the ‘thermal time hypothesis’, which defines time in terms of states representing systems in thermal equilibrium. On this view, time is supposed to emerge thermodynamically even in a fundamentally timeless context. Here, I develop the worry that the thermal time hypothesis requires dynamics—and hence time—to get off the ground, thereby running into worries of circularity.

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