Articles with "quantum noise" as a keyword



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Quantum noise cancellation in asymmetric speed metres with balanced homodyne readout

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Published in 2018 at "New Journal of Physics"

DOI: 10.1088/1367-2630/aae86e

Abstract: The Sagnac speed metre topology has been identified as a promising technique to reduce quantum back-action in gravitational-wave interferometers. However, imbalance of the main beamsplitter has been shown to increase the coupling of laser noise… read more here.

Keywords: quantum noise; speed; balanced homodyne; noise ... See more keywords
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Classical simulation of arbitrary quantum noise

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Published in 2017 at "Physical Review A"

DOI: 10.1103/physreva.96.042338

Abstract: I present an explicit classical simulation of arbitrary quantum noise for quantum models in which one qubit interacts with a quantum bath. The classical model simulates the interaction of the bath and the qubit by… read more here.

Keywords: quantum; arbitrary quantum; quantum noise; classical simulation ... See more keywords
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Broadband quantum noise reduction in future long baseline gravitational-wave detectors via EPR entanglement

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Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.100.083011

Abstract: Broadband quantum noise reduction can be achieved in gravitational-wave detectors by injecting frequency-dependent squeezed light into the dark port of the interferometer. This frequency-dependent squeezing can be generated by combining squeezed light with external filter… read more here.

Keywords: broadband; gravitational wave; noise reduction; quantum noise ... See more keywords

Taming Quantum Noise for Efficient Low Temperature Simulations of Open Quantum Systems.

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Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.129.230601

Abstract: The hierarchical equations of motion (HEOM), derived from the exact Feynman-Vernon path integral, is one of the most powerful numerical methods to simulate the dynamics of open quantum systems. Its applicability has so far been… read more here.

Keywords: open quantum; quantum noise; noise efficient; taming quantum ... See more keywords
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Transmission of Classical Information Over Noisy Quantum Channels–A Spectrum Approach

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Published in 2020 at "IEEE Journal on Selected Areas in Communications"

DOI: 10.1109/jsac.2020.2969003

Abstract: Based upon the Fluctuation-Dissipation Theorem of Nyquist-Callen-Welton and the spectrum balancing relationship of Kubo-Martin-Schwinger for operator-valued stochastic noise processes, a two-parameter Quantum Noise-Energy Spectral Density (QN-ESD) is constructed and Fourier-Laplace transformed to obtain its associated… read more here.

Keywords: frequency; quantum noise; transmission; noise ... See more keywords

Quantum noise ciphered optical stealth communication based on equivalent spectral encoding.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.471977

Abstract: To provide secure and covert transmission for optical communication system at the same time, a quantum-noise stream ciphered optical stealth communication approach is proposed for the first time. In the proposed system, the optical pulses… read more here.

Keywords: quantum noise; optical stealth; ciphered optical; communication ... See more keywords
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DAC/ADC-free 4 × 12.9 Gbit/s 65,536-level quantum noise stream cipher secure optical WDM transmission based on delta-sigma modulation.

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Published in 2022 at "Optics letters"

DOI: 10.1364/ol.471555

Abstract: We propose and experimentally study a novel, to the best of our knowledge, quantum noise stream cipher (QNSC) secure transmission scheme based on the delta-sigma modulation (DSM) technique. The cooperation of the QNSC and DSM… read more here.

Keywords: based delta; quantum noise; noise stream; delta sigma ... See more keywords
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Numerical Simulations on Polarization Quantum Noise Squeezing for Ultrashort Solitons in Optical Fiber with Enlarged Mode Field Area

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Published in 2021 at "Photonics"

DOI: 10.3390/photonics8060226

Abstract: Broadband quantum noise suppression of light is required for many applications, including detection of gravitational waves, quantum sensing, and quantum communication. Here, using numerical simulations, we investigate the possibility of polarization squeezing of ultrashort soliton… read more here.

Keywords: quantum; quantum noise; area; numerical simulations ... See more keywords