Experimental motivation and empirical consistency in minimal no-collapse quantum mechanics

Schlosshauer, Maximilian

doi:10.1016/j.aop.2005.10.004

Cited by 45 publications

(46 citation statements)

References 139 publications

(340 reference statements)

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“…The boundary between quantum and classical physics has been controversial [1,2,3,4,5,6,7,8,9] ever since the early days of quantum mechanics. Nevertheless, the solution to this problem is very important for several fundamental issues in quantum and atomic optics and, more generally, in quantum measurement theory [10,11].…”

Section: Introductionmentioning

confidence: 99%

Monitoring the quantum-classical transition in thermally seeded parametric down-conversion by intensity measurements

et al. 2009

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Abstract. We address the pair of conjugated field modes obtained from parametricdownconversion as a convenient system to analyze the quantum-classical transition in the continuous variable regime. We explicitly evaluate intensity correlations, negativity and entanglement for the system in a thermal state and show that a hierarchy of nonclassicality thresholds naturally emerges in terms of thermal and downconversion photon number. We show that the transition from quantum to classical regime may be tuned by controlling the intensities of the seeds and detected by intensity measurements. Besides, we show that the thresholds are not affected by losses, which only modify the amount of nonclassicality. The multimode case is also analyzed in some detail.

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Section: Introductionmentioning

confidence: 99%

Monitoring the quantum-classical transition in thermally seeded parametric down-conversion by intensity measurements

et al. 2009

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“…Despite over 80 years of predictive success (reviewed in [2]), the physical interpretation of quantum states and hence of quantum theory itself remains mysterious (for recent reviews see [3][4][5]). Informally speaking, this mysteriousness results from the apparent dependence of the physical dynamics on the act of observation.…”

Section: Introductionmentioning

confidence: 99%

If Physics Is an Information Science, What Is an Observer?

Fields

2012

Information

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Abstract:Interpretations of quantum theory have traditionally assumed a "Galilean" observer, a bare "point of view" implemented physically by a quantum system. This paper investigates the consequences of replacing such an informationally-impoverished observer with an observer that satisfies the requirements of classical automata theory, i.e., an observer that encodes sufficient prior information to identify the system being observed and recognize its acceptable states. It shows that with reasonable assumptions about the physical dynamics of information channels, the observations recorded by such an observer will display the typical characteristics predicted by quantum theory, without requiring any specific assumptions about the observer's physical implementation.

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“…One reason why scientists are interested in retinal processing is that retina is an accessible part of the brain that can be easily stimulated with light (Dowling,1987). Also, according to a paper by Schlouschauer (Schlosshauer, 2006) the interaction of light and rhodopsin creates a superposition state of rhodopsin -cis and transwhich is correlated to special states of neurons in the visual cortex. The transduction of light into electrical signals takes place in the photoreceptors.…”

Section: Correlation Of Retina and The Primary Visualmentioning

confidence: 99%

“…However, there are other groups of researchers (e.g. Tegmark, 2000;Schlosshauer, 2006;Thaheld, 2005 and2006;Koch and Hepp, 2006), who either believe that quantum mechanics has no relevance in neuroscience whatsoever or that the nervous system is far too complicated for the application of quantum mechanics to it to be of any use at all. We believe, however, that the latter points of view are overly cautious and possibly biased.…”

Section: Introductionmentioning

confidence: 99%

How Can the Visual Quantum Information be Transferred to The Brain Intact, Collapsing There and Causing Consciousness?

Rahnama¹,

Salari²,

Tuszyński³

2009

Neuroquantology

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The main problem which this paper tries to address is whether collapse of the wave function describing the state of a quantum mechanical system occurs, or, rather can occur in the brain of the observer or not. One of the first (relatively) detailed "collapse models" following the original abstract suggestion by von Neumann that collapse occurs in the brain of the observer and is related to consciousness, is the Orch OR model of Penrose and Hameroff. This model was first criticized by Tegmark on the ground that due to decoherence, quantum processing cannot occur in the human brain. This criticism was countered by saying that due to structural shielding, microtubules inside the neurons can be protected against the wet and warm environment inside the brain. Thaheld, however, in a number of papers argued that quantum visual information carried by the photons from the environment cannot reach the brain intact. In other words, the quantum states of the photons would collapse inside the human eye and only classical information would finally reach the brain and hence no collapse and quantum processing in the brain can take place. In this paper we advance a hypothesis that there is the possibility for the quantum states of photons to be transmitted to the brain in a quantum-like manner. Our approach is based on the quantum teleportation mechanism which includes both classical and quantum aspects of information transfer, but the process itself is wholly quantum mechanical.

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Experimental motivation and empirical consistency in minimal no-collapse quantum mechanics

Cited by 45 publications

References 139 publications

Monitoring the quantum-classical transition in thermally seeded parametric down-conversion by intensity measurements

Monitoring the quantum-classical transition in thermally seeded parametric down-conversion by intensity measurements

If Physics Is an Information Science, What Is an Observer?

How Can the Visual Quantum Information be Transferred to The Brain Intact, Collapsing There and Causing Consciousness?

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