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Helstrom Bound for Squeezed Coherent States in Binary Communication. [PDF]

open access: yesEntropy (Basel), 2022
In quantum information processing, using a receiver device to differentiate between two non-orthogonal states leads to a quantum error probability. The minimum possible error is known as the Helstrom bound. In this work, we study the conditions for state
Curado EMF   +3 more
europepmc   +5 more sources

Squeezed Coherent States in Double Optical Resonance

open access: yesPhotonics, 2021
In this work, we consider a “Λ-type” three-level system where the first transition is driven by a radiation field initially prepared in a squeezed coherent state, while the second one by a weak probe field. If the squeezed field is sufficiently strong to
George Mouloudakis, Peter Lambropoulos
doaj   +4 more sources

Coherent light squeezing states within a modified microring system [PDF]

open access: yesResults in Physics, 2018
We have proposed the simple method of the squeezed light generation in the modified microring resonator, which is known as the microring conjugate mirror (MCM). When the monochromatic light is input into the MCM, the general form of the squeezed coherent
J. Ali   +8 more
doaj   +2 more sources

Thermomechanically squeezed multi-mode phonon lasers with levitated optomechanics. [PDF]

open access: yesNat Commun
Squeezing, an effective approach to reduce noise in one quadrature while increasing it in the orthogonal quadrature, has attracted broad attention to enhance the performance of mechanical oscillators in their thermal or ground states.
Song X   +11 more
europepmc   +2 more sources

Strong broadband intensity noise squeezing from infrared to terahertz frequencies in lasers with nonlinear dissipation. [PDF]

open access: yesNanophotonics
The generation and application of squeezed light have long been central goals of quantum optics. Intensity noise squeezing of bright (coherent) states (“bright squeezing”), in contrast to squeezed vacuum, is relatively underdeveloped.
Pontula S   +3 more
europepmc   +2 more sources

Transactional Interpretation and the Generalized Poisson Distribution

open access: yesEntropy, 2022
The aim of this paper is to study the quantum-like approach to the description of the market in the context of the principle of minimum Fisher information. We wish to investigate the validity of using squeezed coherent states as market strategies.
Marcin Makowski   +1 more
doaj   +1 more source

Implementation of Photonic Phase Gate and Squeezed States via a Two-Level Atom and Bimodal Cavity

open access: yesPhotonics, 2022
We propose a theoretical model for realizing a photonic two-qubit phase gate in cavity QED using a one-step process. The fidelity and probability of success of the conditional quantum phase gate is very high in the presence of cavity decay.
Shiqing Tang   +3 more
doaj   +1 more source

Properties of transient spectrum and field purity for a qubit system in squeezed states

open access: yesResults in Physics, 2021
The present study investigates the transient spectrum (TS) of a two-level system that interacts with a generalized squeezed state without using the rotating wave approximation (RWA).
I.A. Osman   +4 more
doaj   +1 more source

Quantum metrology of two-photon absorption

open access: yesPhysical Review Research, 2021
Two-photon absorption (TPA) is of fundamental importance in super-resolution imaging and spectroscopy. Its nonlinear character allows for the prospect of using quantum resources, such as entanglement, to improve measurement precision or to gain new ...
Carlos Sánchez Muñoz   +2 more
doaj   +1 more source

Squeezed vacuum interaction with an optomechanical cavity containing a quantum well

open access: yesScientific Reports, 2022
We investigate a hybrid system consisting of an optomechanical resonator and an optical cavity containing a quantum well. The system is coupled to a squeezed vacuum reservoir.
H. Jabri, H. Eleuch
doaj   +1 more source

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