ICTS:31630

Video URL

Macroscopic arrow of time and entropy from multiscale perspectives

Macroscopic arrow of time and entropy from multiscale perspectives

(2025). Macroscopic arrow of time and entropy from multiscale perspectives. SciVideos. https://youtube.com/live/FW8PSE7X0Uo

Macroscopic arrow of time and entropy from multiscale perspectives. SciVideos, Apr. 24, 2025, https://youtube.com/live/FW8PSE7X0Uo 

          @misc{ scivideos_ICTS:31630,
            doi = {},
            url = {https://youtube.com/live/FW8PSE7X0Uo},
            author = {},
            keywords = {},
            language = {en},
            title = {Macroscopic arrow of time and entropy from multiscale perspectives},
            publisher = {},
            year = {2025},
            month = {apr},
            note = {ICTS:31630 see, \url{https://scivideos.org/index.php/icts-tifr/31630}}
          }
Mahendra Verma
Talk numberICTS:31630
Source RepositoryICTS-TIFR
Collection

Abstract

Fundamental laws of physics are symmetric under time reversal (T) symmetry, hence we are tempted to deduce that the evolution of the world may be T-symmetric. On the other end, there is an important conjecture that a conservative system with many particles becomes randomized. The latter process, called thermalization, is related to the second law of thermodynamics that makes the macroscopic world asymmetric. In addition to these two divergent topics, I will cover additional T-breaking frameworks: multiscale energy transfer, open systems, and asymmetric objects. In driven dissipative nonequilibrium systems, including turbulence, the multiscale energy flux from large scales to small scales helps determine the arrow of time. In addition, open systems are often irreversible due to particle and energy exchanges between the system and the environment.