Search results for "quantum states"

showing 2 items of 12 documents

Josephson Traveling Wave Parametric Amplifiers as Non-Classical Light Source for Microwave Quantum Illumination

2021

Abstract Detection of low-reflectivity objects can be enriched via the so-called quantum illumination procedure. In order that this quantum procedure outperforms classical detection protocols, entangled states of microwave radiation are initially required. In this paper, we discuss the role of Josephson Traveling Wave Parametric Amplifiers (JTWPAs), based on circuit-QED components, as suitable sources of a two-mode squeezed vacuum state, a special signal-idler entangled state. The obtained wide bandwidth makes the JTWPA an ideal candidate for generating quantum radiation in quantum metrology and information processing applications.

Vacuum stateMicrowave quantum illumination Josephson traveling wave parametric amplifiers Entangled quantum states Detection probability improvementFOS: Physical sciencesElectric apparatus and materials. Electric circuits. Electric networksSettore ING-INF/01 - ElettronicaIndustrial and Manufacturing EngineeringSettore FIS/03 - Fisica Della MateriaSuperconductivity (cond-mat.supr-con)OpticsJosephson traveling wave parametric amplifiersDetection probability improvement Entangled quantum states Josephson traveling wave parametric amplifiersMicrowave quantum illuminationQuantum metrologyMicrowave quantum illuminationElectrical and Electronic EngineeringTK452-454.4QuantumParametric statisticsPhysicsDetection probability improvementQuantum Physicsbusiness.industryAmplifierCondensed Matter - SuperconductivityBandwidth (signal processing)Entangled quantum statesElectronic Optical and Magnetic MaterialsMechanics of MaterialsQuantum illuminationbusinessQuantum Physics (quant-ph)Microwave
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Correspondence between generalized binomial field states and coherent atomic states

2008

We show that the N-photon generalized binomial states of electromagnetic field may be put in a bijective mapping with the coherent atomic states of N two-level atoms. We exploit this correspondence to simply obtain both known and new properties of the N-photon generalized binomial states. In particular, an over-complete basis of these binomial states and an orthonormal basis are obtained. Finally, the squeezing properties of generalized binomial state are analyzed.

quantum statesBinomial (polynomial)Basis (linear algebra)Binomial approximationGeneral Physics and AstronomyState (functional analysis)Gaussian binomial coefficientsymbols.namesakeQuantum mechanicssymbolsCoherent statesMultinomial theoremGeneral Materials ScienceOrthonormal basisStatistical physicsPhysical and Theoretical ChemistryMathematicsThe European Physical Journal Special Topics
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