Qubit Clock in Quantum Cosmology

Yasusada Nambu

研究成果: ジャーナルへの寄稿学術誌査読

抄録

We investigate the emergent time scenario in quantum cosmology based on the Page– Wotters approach. Using a quantum cosmological model with a qubit clock, it is demonstrated how the entanglement between the qubit clock and the geometry derives emergence of a time parameter, which defines evolution of the timeless quantum state of the universe. We show that the universe wave function conditioned by a qubit clock obeys the standard Schrödinger equation and the Fisher information for the clock state, which quantifies entanglement between the universe and the clock, and contributes as a negative energy density.

本文言語英語
論文番号99
ジャーナルUniverse
8
2
DOI
出版ステータス出版済み - 2月 2022
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学一般

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