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Author Favalli, Tommaso, author

Title On the emergence of time and space in closed quantum systems / Tommaso Favalli
Published Cham : Springer, 2024

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Description 1 online resource (xxi, 163 pages) : illustrations (some color)
Series Springer theses, 2190-5061
Springer theses, 2190-5061
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
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
Notes "Doctoral thesis accepted by University of Naples "Federico II", Naples, Italy."
Bibliography Includes bibliographical references
Notes Online resource; title from PDF title page (SpringerLink, viewed February 19, 2024)
Subject Quantum theory.
Space and time.
Genre/Form Electronic books
Form Electronic book
ISBN 9783031523526
3031523520