Quantum Systems under Gravitational Time Dilation by Magdalena Zych

By Magdalena Zych

This thesis introduces a brand new theoretical instrument to discover the suggestion of time and temporal order in quantum mechanics: the relativistic quantum "clock" framework. It proposes novel concept experiments exhibiting that right time can demonstrate quantum positive factors, e.g. whilst a “clock” runs varied right instances in superposition. The ensuing new actual results will be demonstrated in near-future laboratory experiments (with atoms, molecules and photons as "clocks"). The inspiration of time holds the foremost to the regime the place quantum thought and common relativity overlap, which has now not been without delay validated but and is still principally unexplored via the idea. The framework additionally applies to eventualities during which causal relatives among occasions turn into non-classical and that have been formerly thought of most unlikely to handle with out refuting quantum concept. The relativistic quantum "clock" framework bargains new insights into the rules of quantum idea and basic relativity.

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By Magdalena Zych

This thesis introduces a brand new theoretical instrument to discover the suggestion of time and temporal order in quantum mechanics: the relativistic quantum "clock" framework. It proposes novel concept experiments exhibiting that right time can demonstrate quantum positive factors, e.g. whilst a “clock” runs varied right instances in superposition. The ensuing new actual results will be demonstrated in near-future laboratory experiments (with atoms, molecules and photons as "clocks"). The inspiration of time holds the foremost to the regime the place quantum thought and common relativity overlap, which has now not been without delay validated but and is still principally unexplored via the idea. The framework additionally applies to eventualities during which causal relatives among occasions turn into non-classical and that have been formerly thought of most unlikely to handle with out refuting quantum concept. The relativistic quantum "clock" framework bargains new insights into the rules of quantum idea and basic relativity.

Show description

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Borner, M. Jentschel, P. E. Pritchard, World year of physics: a direct test of E = mc2 . Nature 438, 1096–1097 (2005) 5. V. Bargmann, On unitary ray representations of continuous groups. Ann. Math. 59, 1–46 (1954) 6. -M. Levy-Leblond, Galilei group and nonrelativistic quantum mechanics. J. Math. Phys. 4, 776–788 (1963) 7. D. Giulini, On Galilei invariance in quantum mechanics and the Bargmann superselection rule. Ann. Phys. 249, 222–235 (1996) 8. M. Greenberger, Inadequacy of the usual Galilean transformation in quantum mechanics.

The detectors D± thus correspond to normalised projectors onto (|+ ± |− ), respectively. Measurement of which path was taken is given by the observable σˆ z := |+ +| − |− −|, which can be realised when the beam splitter BS2 is removed. 1 Probability of detecting the system in D± (probability of obtaining the outcome ± in the measurement of σˆ x ) exhibits interference when φ is varied: pσˆ x =±1 (φ) = 1 ± ab cos φ . g. length) of the paths or other details of the setup. 3) where the maximum/minimum is taken with respect to φ.

This internal energy operator can be written in the form Hˆ r est = mc2 Iˆint + Hˆ int , where the dynamical part for the internal energy is described by Hˆ int —quantised Hamiltonian describing internal dynamics—and Iˆint is the identity operator on Hint . The rest mass mc2 can be seen as the energy of the ground state of Hˆ r est (in which case the lowest eigenvalue of Hˆ int is zero). This is in a full analogy to the classical case where the mass can be seen as the static part of the internal Hamiltonian.

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