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On the Emergence of Time and Space in Closed Quantum Systems / by Tommaso Favalli.

Springer Nature - Springer Physics and Astronomy eBooks 2024 English International Available online

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Format:
Book
Author/Creator:
Favalli, Tommaso.
Series:
Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5061
Language:
English
Subjects (All):
Gravitation.
Science.
Quantum theory.
Mathematical physics.
Classical and Quantum Gravity.
Foundations of Physics and Cosmology.
Quantum Physics.
Theoretical, Mathematical and Computational Physics.
Local Subjects:
Classical and Quantum Gravity.
Foundations of Physics and Cosmology.
Quantum Physics.
Theoretical, Mathematical and Computational Physics.
Physical Description:
1 online resource (177 pages)
Edition:
1st ed. 2024.
Place of Publication:
Cham : Springer Nature Switzerland : Imprint: Springer, 2024.
Summary:
Time, space and entanglement are the main characters in this book. Their nature is still a great mystery in physics and we study here the possibility that these three phenomena are closely connected, showing how entanglement can be at the basis of the emergence of time and space within closed quantum systems. We revisit and extend the Page and Wootters theory that was originally introduced in order to describe the emergence of time through entanglement between subsystems in a globally static, quantum Universe. In the book, after providing a complete review of the salient aspects of the theory, we establish a connection with recent research on the foundations of statistical mechanics and we provide a new understanding of the thermalization process. Furthermore, we generalize the framework in order describe the spatial degree of freedom and we provide a model of 3+1 dimensional, quantum spacetime emerging from entanglement among different subsystems in a globally "timeless" and "positionless" Universe. Finally, via the Page and Wootters theory, the evolution of quantum clocks within a gravitational field is treated and a time dilation effect is obtained in agreement with the Schwarzschild solution.
Contents:
Introduction
Page and Wootters theory
Complement of the Hamiltonian
Time Observables in a Timeless Universe
Thermal Equilibrium and Emergence of Time
Quantum Spacetime
Quantum Clocks in a Gravitational Field
Conclusions.
Other Format:
Print version: Favalli, Tommaso On the Emergence of Time and Space in Closed Quantum Systems
ISBN:
9783031523526
3031523520
OCLC:
1422544978

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