Results 31 to 40 of about 13,328 (225)
Quantum collapse of a magnetic skyrmion
Physical Review B, 2018 Quantum collapse of a small skyrmion in a thin magnetic film with Dzyalishinskii-Moriya (DMI) interaction has been studied. The energy of the skyrmion and the stability threshold determined by the DMI, the external magnetic field, and the underlying atomic lattice are investigated analytically and numerically.
Derras-Chouk, Amel +2 more
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Quantum radiation from quantum gravitational collapse
Physics Letters B, 2008 We study quantum radiation emitted during the collapse of a quantized, gravitating, spherical domain wall. The amount of radiation emitted during collapse now depends on the wavefunction of the collapsing wall and the background spacetime. If the wavefunction is initially in the form of a sharp wavepacket, the expectation value of the particle ...
Vachaspati, Tanmay, Stojkovic, Dejan
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Quantum collapse rules from the maximum relative entropy principle
New Journal of Physics, 2016 We show that the von Neumann–Lüders collapse rules in quantum mechanics always select the unique state that maximises the quantum relative entropy with respect to the premeasurement state, subject to the constraint that the postmeasurement state has to ...
Frank Hellmann +2 more
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Timeless Approach to Quantum Jumps
Quanta, 2015 According to the usual quantum description, the time evolution of the quantum state is continuous and deterministic except when a discontinuous and indeterministic collapse of state vector occurs.
Ignazio Licata, Leonardo Chiatti
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On the Necessity of Collapsing for Post-Quantum and Quantum Commitments.
, 2023 Collapse binding and collapsing were proposed by Unruh (Eurocrypt '16) as post-quantum strengthenings of computational binding and collision resistance, respectively. These notions have been very successful in facilitating the "lifting" of classical security proofs to the quantum setting.
Dall'Agnol, Marcel, Spooner, Nicholas
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Classical and quantum equations of motion of an n-dimensional BTZ black hole
Physics Letters B, 2016 We investigate the gravitational collapse of a non-rotating n-dimensional BTZ black hole in AdS space in the context of both classical and quantum mechanics.
Eric Greenwood
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An objective collapse model without state dependent stochasticity
SciPost Physics, 2023 The impossibility of describing measurement in quantum mechanics while using a quantum mechanical model for the measurement machine, remains one of its central problems. Objective collapse theories attempt to resolve this problem by proposing alterations
Lotte Mertens, Matthijs Wesseling, Jasper van Wezel
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On capabilities of quantum-mechanical computer models [PDF]
Tehnika, 2022 The work includes the analyses of the theoretical capabilities of quantum-mechanical versus classical computer models in terms of their universality, their application domain, their efficacy in solving the problems and their technological feasibility ...
Simonović Svetomir I.
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Self-gravitating stellar collapse: explicit geodesics and path integration
Frontiers in Astronomy and Space Sciences, 2016 We extend the work of Oppenheimer-Synder to model the gravitational collapse of a star to a black hole by including quantum mechanical effects. We first derive closed-form solutions for classical paths followed by a particle on the surface of the ...
Jayashree Balakrishna +2 more
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The Hidden Clash: Spacetime Outlook and Quantum-State Reductions
PhilosophiesIt is generally assumed that compatibility with special relativity is guaranteed by the invariance of the fundamental equations of quantum physics under Lorentz transformations and the impossibility of transferring energy or information faster than the ...
Rafael Andrés Alemañ-Berenguer
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