A general argument against superluminal transmission through the quantum mechanical measurement process

Ghirardi, GianCarlo; Rimini, A.; Weber, T.

doi:10.1007/bf02817189

Cited by 304 publications

(194 citation statements)

References 5 publications

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“…This is the case considered by Refs. [15] and [16]. Independently of the demonstrations made in Refs.…”

Section: Operator H0 Is Of the Formmentioning

confidence: 81%

“…But, it is common belief that these influences cannot be used for communication. In the literature, one can find several moreor-less complete demonstrations that the phenomenon of instantaneous collapse of the state function, as it is described by quantum theory, does not provide a means of faster-than-light communication between observers, [14], [15], [16], [17], and [18]. However, the argument has never been made with every logical step spelled out explicitly.…”

Section: Purposementioning

confidence: 99%

“…Independently of the demonstrations made in Refs. [15] and [16], it is easy to see that this set of assumptions in plain quantum theory implies that the operators corresponding to the measurements made in VR commute with the measurement operators in Vs and with the changes in Hamiltonian~H and~iI, in both the Schroedinger and the Heisenberg representations.…”

Section: Operator H0 Is Of the Formmentioning

confidence: 99%

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Quantum field theory cannot provide faster-than-light communication

Eberhard

Ross

1989

Found Phys Lett

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“…This is the case considered by Refs. [15] and [16]. Independently of the demonstrations made in Refs.…”

Section: Operator H0 Is Of the Formmentioning

confidence: 81%

Section: Purposementioning

confidence: 99%

Section: Operator H0 Is Of the Formmentioning

confidence: 99%

See 1 more Smart Citation

Quantum field theory cannot provide faster-than-light communication

Eberhard

Ross

1989

Found Phys Lett

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“…Eberhard [24] and Ghirardi et al [25] had given such demonstrations as early as the 1970s, and others also gave similar general demonstrations such as Busch [26].…”

Section: A General Analysismentioning

confidence: 99%

Quantum Collapse, Consciousness and Superluminal Communication

Gao

2004

Foundations of Physics Letters

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The relation between quantum collapse, consciousness and superluminal communication is analyzed. As we know, quantum collapse, if exists, can result in the appearance of quantum nonlocality, and requires the existence of a preferred Lorentz frame. This may permit the realization of quantum superluminal communication (QSC), which will no longer result in the usual causal loop in case of the existence of a preferred Lorentz frame. The possibility of the existence of QSC is further analyzed under the assumption that quantum collapse is a real process. We demonstrate that the combination of quantum collapse and the consciousness of the observer will permit the observer to distinguish nonorthogonal states in principle. This provides a possible way to realize QSC.Some implications of the existence of QSC are briefly discussed.

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“…On the one hand, as Bel1 [l] showed, quantum correlations could not arise in any theory in which all variables obey relativistic causality [2]. On the other hand, quantum correlations themselves obey relativistic causality-we cannot exploit quantum correlations to transmit signals at superluminal speeds [3] (or at any speed). That quantum mechanics combines nonlocality and causality is wondrous.…”

Section: Introductionmentioning

confidence: 99%

Action and Passion at a Distance

Popescu

Rohrlich

1997

Potentiality, Entanglement and Passion-at-a-Distance

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quantum mechanics; quantum non-locality Quantum mechanics permits nonlocality -both nonlocal correlations and nonlocal equations of motion -while respectin~relativistic causality. Is quantum mechamcs tlie unique theory that reconciles nonlocality and causality?We consider two models; going beyond quantum mechanics, of nonlocatity -"superquantum" correlations, and nonlocal "jamming" of correlations -and derive new results for the jamming model. In one space dimension, jamming allows reversal of the sequence of cause and effect: in higher dimensions, however, effect never precedes cause. AbstractQuantum mechanics permits nonlocality-both nonlocal correlations and nonlocal equations of motion-while respecting relativistic causality. Is quantum mechanics the unique theory that reconciles nonlocality and causality?We consider two models, going beyond quantum mechanics, of nonlocality-

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A general argument against superluminal transmission through the quantum mechanical measurement process

Cited by 304 publications

References 5 publications

Quantum field theory cannot provide faster-than-light communication

Quantum field theory cannot provide faster-than-light communication

Quantum Collapse, Consciousness and Superluminal Communication

Action and Passion at a Distance

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