Self-gravitating interferometry and intrinsic decoherence

@article{Gooding2014SelfgravitatingIA,
  title={Self-gravitating interferometry and intrinsic decoherence},
  author={Cisco Gooding and W. G. Unruh},
  journal={Physical Review D},
  year={2014},
  volume={90},
  pages={044071}
}
To investigate the possibility that intrinsic gravitational decoherence can be theoretically demonstrated within canonical quantum gravity, we develop a model of a self-gravitating interferometer. We search for evidence in the resulting interference pattern that would indicate coherence is fundamentally limited due to general relativistic effects. To eliminate the occurrence of gravitational waves, we work in spherical symmetry, and construct the ``beam'' of the interferometer out of WKB states… 

Figures from this paper

Bootstrapping Time Dilation Decoherence

We present a general relativistic model of a spherical shell of matter with a perfect fluid on its surface coupled to an internal oscillator, which generalizes a model recently introduced by the

Bootstrapping Time Dilation Decoherence

We present a general relativistic model of a spherical shell of matter with a perfect fluid on its surface coupled to an internal oscillator, which generalizes a model recently introduced by the

Decoherence effects in non-classicality tests of gravity

The experimental observation of a clear quantum signature of gravity is believed to be out of the grasp of current technology. However, several recent promising proposals to test the possible

Gravitational Field effects on the Decoherence Process and the Quantum Speed Limit

It is found that gravitational fields affect both the decoherence process and the quantum speed limit of a quantum particle with spin-1/2, except when the mean speed of the quantum particle is comparable to the speed of light.

Wave optics of quantum gravity for massive particles

Effects of the quantum gravity under Minkowski space-time background are considered. It is shown that despite the absence of the complete theory of quantum gravity, some concrete predictions could be

Gravitational dephasing in spontaneous emission of atomic ensembles in timed Dicke states

Here we discuss an effect of gravitational decoherence due to time dilation on the collective radiation dynamics of atomic system in timed single-photon Dicke states. We show that a photon absorbed

Quantum tunneling of composite object coupled with quantized radiation field

We study quantum tunneling of a composite object, which has a dipole or quadrupole moment coupled with quantized (photon or gravitational) radiation field, through a potential barrier. The dipole or

General relativistic effects in quantum interference of “clocks”

Quantum mechanics and general relativity have been each successfully tested in numerous experiments. However, the regime where both theories are jointly required to explain physical phenomena remains

Bell’s theorem for temporal order

A thought experiment is considered where a massive body in a spatial superposition leads to entanglement of temporal orders between time-like events, resulting in a violation of a Bell-type inequality.

Inflying perspectives of reduced phase space

There is widespread disagreement about how the general covariance of a theory affects its quantization. Without a complete quantum theory of gravity, one can examine quantum consequences of

References

SHOWING 1-10 OF 88 REFERENCES

Quantum gravitational decoherence of matter waves

One of the biggest unsolved problems in physics is the unification of quantum mechanics and general relativity. The lack of experimental guidance has made the issue extremely evasive, though various

Ultimate decoherence border for matter-wave interferometry.

A quantitative characterization of an ultimate decoherence border for matter-wave interferometry using larger and larger molecules is given in terms of figures involving the gravitational environment as well as the sensitivity of the interferometer to gravitational waves.

Quantum interferometric visibility as a witness of general relativistic proper time

This work considers interference of a 'clock'—a particle with evolving internal degrees of freedom—that will not only display a phase shift, but also reduce the visibility of the interference pattern, which would provide the first test of the genuine general relativity notion of proper time in quantum mechanics.

General relativistic effects in quantum interference of photons

Quantum mechanics and general relativity have been extensively and independently confirmed in many experiments. However, the interplay of the two theories has never been tested: all experiments that

Lorentz invariant intrinsic decoherence

Quantum decoherence can arise due to classical fluctuations in the parameters which define the dynamics of the system. In this case decoherence, and complementary noise, is manifest when data from

Gravitational decoherence, alternative quantum theories and semiclassical gravity

In this report we discuss three aspects: 1) Semiclassical gravity theory (SCG): 4 levels of theories describing the interaction of quantum matter with classical gravity. 2) Alternative Quantum

Intrinsic and fundamental decoherence: issues and problems

We investigate the meaning of gravity-induced decoherence in quantum theory, known as ‘intrinsic’ or ‘fundamental’ decoherence in the literature. We explore a range of issues relevant to this

Intrinsic decoherence in quantum mechanics.

  • Milburn
  • Physics
    Physical review. A, Atomic, molecular, and optical physics
  • 1991
A model for intrinsic decoherence in quantum mechanics is proposed, based on a simple modification of unitary Schrodinger evolution, with testable consequences including anomalous dispersion of a free particle, decay of oscillatory systems, destruction of interference-fringe visibility, and a phase shift of interference fringes.

Equivalence of wave-particle duality to entropic uncertainty.

It is shown that wave-particle duality relations correspond precisely to a modern formulation of the uncertainty principle in terms of entropies, namely, the min- and max-entropies.

On Gravity's role in Quantum State Reduction

The stability of a quantum superposition of two different stationary mass distributions is examined, where the perturbing effect of each distribution on the space-time structure is taken into
...