scholarly journals Colored and dissipative continuous spontaneous localization model and bounds from matter-wave interferometry

2017 ◽  
Vol 381 (47) ◽  
pp. 3921-3927 ◽  
Author(s):  
Marko Toroš ◽  
Giulio Gasbarri ◽  
Angelo Bassi
Keyword(s):  
Matter Wave ◽  
Localization Model ◽  
Spontaneous Localization ◽  
Continuous Spontaneous Localization

scholarly journals Experimental constrains on the Continuous Spontaneous Localization model from spontaneous radiation emission

2018 ◽  
Author(s):  
kristian Piscicchia ◽  
Angelo Bassi ◽  
Catalina Curceanu ◽  
Sandro Donadi ◽  
Andreas Pichler ◽  
...  
Keyword(s):  
Spontaneous Radiation ◽  
Radiation Emission ◽  
Localization Model ◽  
Spontaneous Localization ◽  
Continuous Spontaneous Localization

STOCHASTIC DIFFERENTIAL EQUATIONS FOR THE CONTINUOUS SPONTANEOUS LOCALIZATION MODEL

2000 ◽  
Vol 15 (30) ◽  
pp. 1833-1842
Author(s):  
L. F. SANTOS ◽  
C. O. ESCOBAR
Keyword(s):  
Wave Function ◽  
Differential Equations ◽  
Stochastic Differential Equations ◽  
Quantum System ◽  
Open Quantum System ◽  
Random Potential ◽  
Free Particle ◽  
Localization Model ◽  
Spontaneous Localization ◽  
Continuous Spontaneous Localization

We extend Vink's method [J. C. Vink, Phys. Rev.A48, 1808 (1993)], developed for an isolated quantum system, to an open quantum system consisting of a free particle interacting with its surrounding through a random potential, which causes the spontaneous localization of its wave function. We then obtain the stochastic differential equations (SDE) underlying its evolution. These SDE help us to observe the effects of the environment upon the movement of the particle.

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

2018 ◽  
Vol 20 (8) ◽  
pp. 083022 ◽  
Author(s):  
Matteo Carlesso ◽  
Mauro Paternostro ◽  
Hendrik Ulbricht ◽  
Andrea Vinante ◽  
Angelo Bassi
Keyword(s):  
Model Based ◽  
Localization Model ◽  
Spontaneous Localization ◽  
Continuous Spontaneous Localization

scholarly journals Stochastic Gravity and Ontological Quantum Mechanics

2018 ◽  
Author(s):  
Thomas C Andersen
Keyword(s):  
Quantum Mechanics ◽  
Thermal Noise ◽  
Wave Radiation ◽  
Semiclassical Theory ◽  
Noise Component ◽  
Quantum Theories ◽  
Nuclear Systems ◽  
Spontaneous Localization ◽  
Continuous Spontaneous Localization ◽  
Stochastic Gravity

Some physicists surmise that gravity lies outside of quantum mechanics. Thus theories like the standard semiclassical theory of quantum to gravity coupling (that of Rosenfeld and Møller) are possible real models of interaction, rather than a mere approximation of a theory of quantum gravity. Unfortunately, semiclassical gravity creates inconsistencies such as superluminal communication. Alternatives by authors such as Diósi, Martin, Penrose, and Wang often use the term 'stochastic' to set themselves apart from the standard semiclassical theory. These theories couple to fluctuations caused by for instance continuous spontaneous localization, hence the term 'stochastic'. This paper looks at stochastic gravity in the framework of a class of emergent or ontological quantum theories, such as those by Bohm, Cetto, and de Broglie. It is found that much or all of the trouble in connecting gravity with a microscopic system falls away, as Einstein's general relativity is free to react directly with the microscopic beables. The resulting continuous gravitational wave radiation by atomic and nuclear systems does not, in contrast to Einstein's speculation, cause catastrophic problems. The small amount of energy exchanged by gravitational waves may have measurable experimental consequences. A very recent experiment by Vinante et al. performed on a small cantilever at mK temperatures shows a surprising non-thermal noise component, the magnitude of which is consistent with the stochastic gravity coupling explored here.

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