Results 31 to 40 of about 43,026 (285)

Symplectic Tomography of Nonclassical States of Trapped Ion [PDF]

open access: yes, 1996
The marginal distribution of squeezed and rotated quadrature for two types of nonclassical states of trapped ion -- for squeezed and correlated states and for squeezed even and odd coherent states (squeezed Schr\"odinger cat states) is studied.
Banaszek   +29 more
core   +3 more sources

Squeezing-enhanced communication without a phase reference [PDF]

open access: yesQuantum, 2021
We study the problem of transmitting classical information using quantum Gaussian states on a family of phase-noise channels with a finite decoherence time, such that the phase-reference is lost after $m$ consecutive uses of the transmission line.
Marco Fanizza   +4 more
doaj   +1 more source

Scattering-lens based quantum imaging beyond shot noise

open access: yesScientific Reports, 2021
The scheme of optical imaging using scattering lens can provide a resolution beyond the classical optical diffraction limit with a coherent-state input.
Dong Li, Yao Yao
doaj   +1 more source

On the Isomorphism between Dissipative Systems, Fractal Self-Similarity and Electrodynamics. Toward an Integrated Vision of Nature

open access: yesSystems, 2014
In electrodynamics there is a mutual exchange of energy and momentum between the matter field and the electromagnetic field and the total energy and momentum are conserved.
Giuseppe Vitiello
doaj   +1 more source

Quantum-Noise Power Spectrum of Fields with Discrete Classical Components [PDF]

open access: yes, 2007
We present an algorithmic approach to calculate the quantum-noise spectral density of photocurrents generated by optical fields with arbitrary discrete classical spectrum in coherent or squeezed states.
Cochrane, P., Freise, A., Harms, J.
core   +2 more sources

Generation and Measurement of Squeezed Vacuum States at Audio-Band Frequencies

open access: yesApplied Sciences, 2019
Squeezed vacuum states at audio-band frequencies are important quantum resources for practical applications. We demonstrated the generation of squeezed vacuum states at the audio-band frequencies from a subthreshold optical parametric oscillator with a ...
Yinghao Gao   +3 more
doaj   +1 more source

Transcoherent States: Optical States for Maximal Generation of Atomic Coherence

open access: yesPRX Quantum, 2020
Quantum technologies are built on the power of coherent superposition. Atomic coherence is typically generated from optical coherence, most often via Rabi oscillations.
Aaron Z. Goldberg, Aephraim M. Steinberg
doaj   +1 more source

Distillation of maximally correlated bosonic matter from many-body quantum coherence [PDF]

open access: yesQuantum, 2020
We construct quantum coherence resource theories in symmetrized Fock space (QCRTF), thereby providing an information-theoretic framework that connects analyses of quantum coherence in discrete-variable (DV) and continuous variable (CV) bosonic systems ...
Tyler J. Volkoff
doaj   +1 more source

Taming numerical errors in simulations of continuous variable non-Gaussian state preparation

open access: yesScientific Reports, 2022
Numerical simulation of continuous variable quantum state preparation is a necessary tool for optimization of existing quantum information processing protocols.
Jan Provazník, Radim Filip, Petr Marek
doaj   +1 more source

Overcoming detection loss and noise in squeezing-based optical sensing

open access: yesnpj Quantum Information, 2021
Among the known resources of quantum metrology, one of the most practical and efficient is squeezing. Squeezed states of atoms and light improve the sensing of the phase, magnetic field, polarization, mechanical displacement. They promise to considerably
Gaetano Frascella   +3 more
doaj   +1 more source

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