Results 1 to 10 of about 25,951 (191)
Experimental superposition of orders of quantum gates [PDF]
Nature Communications, 2015 AbstractQuantum computers achieve a speed-up by placing quantum bits (qubits) in superpositions of different states. However, it has recently been appreciated that quantum mechanics also allows one to ‘superimpose different operations’. Furthermore, it has been shown that using a qubit to coherently control the gate order allows one to accomplish a ...
Lorenzo M Procopio +2 more
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Preparation of Quantum Superposition Using Partial Negation
IEEE Access, 2022 The preparation of a quantum superposition is the key to the success of many quantum algorithms and quantum machine learning techniques. The preparation of an incomplete or a non-uniform quantum superposition with certain properties is a non-trivial task.
Sara Anwer +3 more
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Results in Physics, 2023 We investigate the entanglement robustness of an N-qubit W superposition state against particle loss with quantum Fisher information. In the noninteracting environment, the quantum Fisher information of reduced W superposition state is found same as it ...
Zhihong Ren, Yan Li
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Creating a Superposition of Unknown Quantum States [PDF]
Physical Review Letters, 2016 The superposition principle is one of the landmarks of quantum mechanics. The importance of quantum superpositions provokes questions about the limitations that quantum mechanics itself imposes on the possibility of their generation. In this work we systematically study the problem of creation of superpositions of unknown quantum states.
Michał Oszmaniec +2 more
exaly +5 more sources
Quantum-inspired superposition and nonseparable states of reconfigurable metasurfaces in classical systems [PDF]
Nature CommunicationsClassical and quantum bits serve as cornerstone in information science. As this field rapidly evolves, the interplay between the two continues to enrich and inspire each other.
Long Chen +7 more
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Quantum States of Fields for Quantum Split Sources [PDF]
Quantum, 2023 Field mediated entanglement experiments probe the quantum superposition of macroscopically distinct field configurations. We show that this phenomenon can be described by using a transparent quantum field theoretical formulation of electromagnetism and ...
Lin-Qing Chen +2 more
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Results in Physics, 2022 The resource theory of superposition is a generalization of coherence theory. A rigorous framework for quantifying superposition of linear independent states has been given by previous studies.
Hai-Bo Xing
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Methods of constructing superposition measures
Results in Physics, 2023 The resource theory of quantum superposition is an extension of the quantum coherent theory, in which linear independence relaxes the requirement of orthogonality.
Jia-Lin Teng, Feng-Li Yan, Ting Gao
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Towards Quantum Superpositions of a Mirror [PDF]
Physical Review Letters, 2003 5 pages, 2 figures, submitted to Phys.
Marshall, William +3 more
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Stable Macroscopic Quantum Superpositions [PDF]
Physical Review Letters, 2011 We study the stability of superpositions of macroscopically distinct quantum states under decoherence. We introduce a class of quantum states with entanglement features similar to Greenberger-Horne-Zeilinger (GHZ) states, but with an inherent stability against noise and decoherence.
Fröwis, F., Dür, W.
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