Results 41 to 50 of about 167,064 (282)
Quantum resource studied from the perspective of quantum state superposition
, 2015 Quantum resources,such as discord and entanglement, are crucial in quantum information processing. In this paper, quantum resources are studied from the aspect of quantum state superposition.
Guo, Hong +3 more
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Generating and Revealing a Quantum Superposition of Electromagnetic Field Binomial States in a Cavity [PDF]
, 2007 We introduce the $N$-photon quantum superposition of two orthogonal generalized binomial states of electromagnetic field. We then propose, using resonant atom-cavity interactions, non-conditional schemes to generate and reveal such a quantum ...
A. Messina +12 more
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, 2023 Lying in the core of the conceptual scheme of current quantum theory, the notion of quantum superposition is a consequence of the quantum-mechanical superposition principle. However, relying on precise but not attainable space or time coordinates, quantum superposition makes little sense physically if we use it to describe or explain experimental ...
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Superposition, entanglement and quantum computation
Quantum Information and Computation, 2002 The paper examines the roles played by superposition and entanglement in quantum computing. The analysis is illustrated by discussion of a "classical" electronic implementation of Grover's quantum search algorithm. It is shown explicitly that the absence of multi-particle entanglement leads to exponentially rising resources for implementing such ...
Forcer, T.M. +3 more
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Collapse dynamics and Hilbert-space stochastic processes
Scientific Reports, 2021 Spontaneous collapse models of state vector reduction represent a possible solution to the quantum measurement problem. In the present paper we focus our attention on the Ghirardi–Rimini–Weber (GRW) theory and the corresponding continuous localisation ...
Daniele Bajoni +3 more
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Macroscopicity of quantum superpositions on a one-parameter unitary path in Hilbert space [PDF]
, 2014 We analyze quantum states formed as superpositions of an initial pure product state and its image under local unitary evolution, using two measurement-based measures of superposition size: one based on the optimal quantum binary distinguishability of the
Volkoff, T. J., Whaley, K. B.
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Generation of Superposition Spin States in an Atomic Ensemble [PDF]
, 2003 A method for generating a mesoscopic superposition state of the collective spin variable of a gas of atoms is proposed. The state consists of a superposition of the atomic spins pointing in two slightly different directions.
A. Kuzmich +6 more
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Quantum Reference Frames for Lorentz Symmetry [PDF]
QuantumSince their first introduction, Quantum Reference Frame (QRF) transformations have been extensively discussed, generalising the covariance of physical laws to the quantum domain.
Luca Apadula +2 more
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Limitations on the superposition principle: superselection rules in non-relativistic quantum mechanics [PDF]
, 1998 The superposition principle is a very basic ingredient of quantum theory. What may come as a surprise to many students, and even to many practitioners of the quantum craft, is tha superposition has limitations imposed by certain requirements of the ...
A L Salas-Brito +22 more
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Enhancing quantum computation via superposition of quantum gates
Physical Review A, 2023 Overcoming the influence of noise and imperfections in quantum devices is one of the main challenges for viable quantum applications. In this article, we present different protocols, which we denote as "superposed quantum error mitigation", that enhance the fidelity of single gates or entire computations by performing them in coherent superposition ...
Jorge Miguel-Ramiro +5 more
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