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Coherent quantum dynamics: What fluctuations can tell (2015)

John Schliemann

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): John Schliemann Coherent states provide a natural connection of quantum systems to their classical limit and are employed in various fields of physics. Here we derive general systematic expansions, with respect to quantum parameters, of expectation values of products of arbitrary operators within both oscillator co… [Phys. Rev. A 92, 022108] Published Mon Aug 10, 2015

Schlagwort(e): Fundamental concepts

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

Publiziert von American Physical Society (APS)

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2

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Clauser-Horne Bell test with imperfect random inputs (2015)

Xiao Yuan, Qi Zhao, and Xiongfeng Ma

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Xiao Yuan, Qi Zhao, and Xiongfeng Ma The Bell test is one of the most important tools in quantum information science. On the one hand, it enables fundamental tests of the basic physics laws of nature, and on the other hand, it can also be applied in a variety of device-independent tasks such as quantum key distribution and random numbe… [Phys. Rev. A 92, 022107] Published Mon Aug 10, 2015

Schlagwort(e): Fundamental concepts

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

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3

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Continuous-variable quantum process tomography with squeezed-state probes (2015)

Jaromír Fiurášek

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-04

Beschreibung: Author(s): Jaromír Fiurášek We propose a procedure for tomographic characterization of continuous-variable quantum operations which employs homodyne detection and single-mode squeezed probe states with a fixed degree of squeezing and antisqueezing and a variable displacement and orientation of squeezing ellipse. Density matrix… [Phys. Rev. A 92, 022101] Published Mon Aug 03, 2015

Schlagwort(e): Fundamental concepts

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

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Nonlinear Michelson interferometer for improved quantum metrology (2015)

Alfredo Luis and Ángel Rivas

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Alfredo Luis and Ángel Rivas We examine quantum detection via a Michelson interferometer embedded in a gas with Kerr nonlinearity. This nonlinear interferometer is illuminated by pulses of classical light. This strategy combines the robustness against practical imperfections of classical light with the improvement provided by n… [Phys. Rev. A 92, 022104] Published Fri Aug 07, 2015

Schlagwort(e): Fundamental concepts

Print ISSN: 1050-2947

Digitale ISSN: 1094-1622

Thema: Physik

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5

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Heisenberg scaling in Gaussian quantum metrology (2015)

Nicolai Friis, Michalis Skotiniotis, Ivette Fuentes, and Wolfgang Dür

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Nicolai Friis, Michalis Skotiniotis, Ivette Fuentes, and Wolfgang Dür We address the issue of precisely estimating small parameters encoded in a general linear transformation of the modes of a bosonic quantum field. Such Bogoliubov transformations frequently appear in the context of quantum optics. We provide a set of instructions for computing the quantum Fisher info… [Phys. Rev. A 92, 022106] Published Fri Aug 07, 2015

Schlagwort(e): Fundamental concepts

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Digitale ISSN: 1094-1622

Thema: Physik

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6

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Quantum Darwinism and non-Markovian dissipative dynamics from quantum phases of the spin-1/2 XX model (2015)

Gian Luca Giorgi, Fernando Galve, and Roberta Zambrini

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Gian Luca Giorgi, Fernando Galve, and Roberta Zambrini Quantum Darwinism explains the emergence of a classical description of objects in terms of the creation of many redundant registers in an environment containing their classical information. This amplification phenomenon, where only classical information reaches the macroscopic observer and through w… [Phys. Rev. A 92, 022105] Published Fri Aug 07, 2015

Schlagwort(e): Fundamental concepts

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Digitale ISSN: 1094-1622

Thema: Physik

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7

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Cost of postselection in decision theory (2015)

Joshua Combes and Christopher Ferrie

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-20

Beschreibung: Author(s): Joshua Combes and Christopher Ferrie Postselection is the process of discarding outcomes from statistical trials that are not the event one desires. Postselection can be useful in many applications where the cost of getting the wrong event is implicitly high. However, unless this cost is specified exactly, one might conclude that disca… [Phys. Rev. A 92, 022117] Published Wed Aug 19, 2015

Schlagwort(e): Fundamental concepts

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Digitale ISSN: 1094-1622

Thema: Physik

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8

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Global multipartite nonlocality and Bell-type inequalities in infinite-size quantum spin chains (2015)

Zhao-Yu Sun, Bin Guo, and Hai-Lin Huang

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-25

Beschreibung: Author(s): Zhao-Yu Sun, Bin Guo, and Hai-Lin Huang In this paper, we characterize the global multipartite nonlocality in one-dimensional infinite-size spin-1/2 chains. For this purpose, we calculate the multipartite nonlocality of n -site subchains, and take the large- n limit. As n increases from 2 to 100, we find that the average revenue and the mar… [Phys. Rev. A 92, 022120] Published Mon Aug 24, 2015

Schlagwort(e): Fundamental concepts

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9

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Hermitian non-Markovian stochastic master equations for quantum dissipative dynamics (2015)

Yun-An Yan and Yun Zhou

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-25

Beschreibung: Author(s): Yun-An Yan and Yun Zhou It remains a challenge for theory to simulate nonperturbative and non-Markovian quantum dissipative dynamics at low temperatures. In this study we suggest a Hermitian non-Markovian stochastic master equation suitable for dissipative dynamics at arbitrary temperatures. The memory effect of the bath i… [Phys. Rev. A 92, 022121] Published Mon Aug 24, 2015

Schlagwort(e): Fundamental concepts

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Thema: Physik

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10

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Radiative heat transfer between a rotating nanoparticle and a plane surface (2015)

Vahid Ameri, Mehdi Shafiei Aporvari, and Fardin Kheirandish

American Physical Society (APS)

In: Physical Review A

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Publikationsdatum: 2015-08-13

Beschreibung: Author(s): Vahid Ameri, Mehdi Shafiei Aporvari, and Fardin Kheirandish Based on a microscopic approach, we propose a Lagrangian for the combined system of a rotating dielectric nanoparticle above a plane surface in the presence of electromagnetic vacuum fluctuations. In the framework of canonical quantization, the electromagnetic vacuum field is quantized in the presen… [Phys. Rev. A 92, 022110] Published Wed Aug 12, 2015

Schlagwort(e): Fundamental concepts

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Digitale ISSN: 1094-1622

Thema: Physik

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