Results 51 to 60 of about 1,414,712 (339)
Decoherence on Quantum Tunneling in the Multi-Dimensional Wave Function Approach [PDF]
, 1994 We consider fundamental problems on the understanding of the tunneling phenomena in the context of the multi-dimensional wave function. In this paper, we reconsider the quantum state after tunneling and extend our previous formalism to the case when the ...
Tanaka, Takahiro
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Physical Review LettersNotions of nonstabilizerness, or “magic,” quantify how nonclassical quantum states are in a precise sense: states exhibiting low nonstabilizerness preclude quantum advantage. We introduce “pseudomagic” ensembles of quantum states that, despite low nonstabilizerness, are computationally indistinguishable from those with high nonstabilizerness ...
Gu A. +5 more
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Unambiguous quantum state filtering
, 2003 In this paper, we consider the generalized measurement where one particular quantum signal is unambiguously extracted from a set of non-commutative quantum signals and the other signals are filtered out.
A. Chefles +14 more
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Fidelity and information in the quantum teleportation of continuous variables [PDF]
, 2000 Ideally, quantum teleportation should transfer a quantum state without distortion and without providing any information about that state. However, quantum teleportation of continuous electromagnetic field variables introduces additional noise, limiting ...
Furusawa, Akira +3 more
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Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
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Establishing and storing of deterministic quantum entanglement among three distant atomic ensembles
Nature Communications, 2017 Continuous-variable encoding is a promising approach for quantum information and communication networks. Here, the authors show how to map entanglement from three spatial optical modes to three separated atomic samples via electromagnetically induced ...
Zhihui Yan +8 more
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Photonics, 2022 The storage wavelength of quantum nodes based on atomic systems does not match the wavelength of optical fiber communication, which requires the establishment of an efficient conversion system between flying bits and storage bits. In this paper, based on
Miao Guo +4 more
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Describing a Quantum Channel by State Tomography of a Single Probe State
, 2009 A general law is presented for (composite) quantum systems which directly describes the time evolution of quantum states (with one or both components) through an arbitrary noisy quantum channel.
Song, He-shan, Yu, Chang-shui
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Quantum state majorization at the output of bosonic Gaussian channels [PDF]
, 2014 Quantum communication theory explores the implications of quantum mechanics to the tasks of information transmission. Many physical channels can be formally described as quantum Gaussian operations acting on bosonic quantum states. Depending on the input
Giovannetti, Vittorio +2 more
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Teleportation of quantum states [PDF]
Physical Review A, 1994 Bennett et al. (PRL 70, 1859 (1993)) have shown how to transfer ("teleport") an unknown spin quantum state by using prearranged correlated quantum systems and transmission of classical information. I will show how their results can be obtained in the framework of nonlocal measurements proposed by Aharonov and Albert I will generalize the latter to the ...
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