Colored collapse models from the non-interferometric perspective

@article{Carlesso2018ColoredCM,
  title={Colored collapse models from the non-interferometric perspective},
  author={Matteo Carlesso and Luca Ferialdi and Angelo Bassi},
  journal={The European Physical Journal D},
  year={2018},
  volume={72},
  pages={1-7}
}
Abstract Models of spontaneous wave function collapse describe the quantum-to-classical transition by assuming a progressive breakdown of the superposition principle when the mass of the system increases, providing a well-defined phenomenology in terms of a non-linearly and stochastically modified Schrödinger equation, which can be tested experimentally. The most popular of such models is the continuous spontaneous localization (CSL) model: in its original version, the collapse is driven by a… 

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References

SHOWING 1-10 OF 79 REFERENCES

Collapse models with non-white noises

We set up a general formalism for models of spontaneous wavefunction collapse with dynamics represented by a stochastic differential equation driven by general Gaussian noises, not necessarily white

Dissipative Continuous Spontaneous Localization (CSL) model

TLDR
The dissipative version of the CSL model is presented, which guarantees a finite energy during the entire system’s evolution, thus making a crucial step toward a realistic energy-conserving collapse model.

Collapse models with non-white noises: II. Particle-density coupled noises

We continue the analysis of models of spontaneous wavefunction collapse with stochastic dynamics driven by non-white Gaussian noise. We specialize to a model in which a classical ‘noise’ field, with

On spontaneous photon emission in collapse models

We reanalyze the problem of spontaneous photon emission in collapse models. We show that the extra term found by Bassi and Dürr is present for non-white (colored) noise, but its coefficient is

Non-interferometric test of the continuous spontaneous localization model based on rotational optomechanics

The continuous spontaneous localization (CSL) model is the best known and studied among collapse models, which modify quantum mechanics and identify the fundamental reasons behind the unobservability

Testing spontaneous wave-function collapse models on classical mechanical oscillators.

TLDR
It is shown that the heating effect of spontaneous wave-function collapse models implies an experimentally significant increment ΔT(sp) of equilibrium temperature in a mechanical oscillator, which is linear in the oscillator's relaxation time τ and independent of the mass.

Bounds on quantum collapse models from matter-wave interferometry: calculational details

We present a simple derivation of the interference pattern in matter-wave interferometry predicted by a class of quantum master equations. We apply the obtained formulae to the following collapse

Dissipative collapse models with nonwhite noises

We study the generalization of the QMUPL model which accounts both for memory and dissipative effects. This is the first model where both features are combined. After having derived the non-local

Proposal for a noninterferometric test of collapse models in optomechanical systems

The test of modifications to quantum mechanics aimed at identifying the fundamental reasons behind the unobservability of quantum mechanical superpositions at the macroscale is a crucial goal of
...