Results 31 to 40 of about 1,230 (116)
Probing Mermin’s inequalities violations through pseudospin operators
Physics Open, 2023 The violation of Mermin’s inequalities is analyzed by making use of two different Bell setups built with pseudospin operators. Employing entangled states defined by means of squeezed and coherent states, the expectation value of Mermin’s polynomials Mn ...
Philipe De Fabritiis +2 more
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Generation of squeezed high-order harmonics
Physical Review ResearchFor decades, most research of high harmonic generation (HHG) considered matter as quantum but light as classical. Recently, HHG driven by quantum states of light such as bright squeezed vacuum was predicted to reach beyond the classical HHG cutoff ...
Matan Even Tzur +5 more
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Effects of Squeezing on the Power Broadening and Shifts of Micromaser Lineshapes
PhotonicsAC Stark shifts have an impact on the dynamics of atoms interacting with a near-resonant quantized single-mode cavity field, which is relevant to a single atom micromaser. In this study, we demonstrate that, when the field is in a squeezed coherent state,
Leonardi Hernández-Sánchez +3 more
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Entropy, 2020 We consider the problem of minimization of products of mean values of the high powers of operators x and p. From this point of view, we study several two-term superpositions of the Fock states, as well as three popular families of infinite superpositions:
Miguel Citeli de Freitas +2 more
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Squeezing-enhanced quantum key distribution over atmospheric channels
New Journal of Physics, 2020 We propose the Gaussian continuous-variable quantum key distribution using squeezed states in the composite channels including atmospheric propagation with transmittance fluctuations.
Ivan Derkach +2 more
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Physical Review ResearchHigh-quality squeezed light is an important resource for a variety of applications. Multiple methods for generating squeezed light are known, having been demonstrated theoretically and experimentally.
Steve M. Young, Daniel Soh
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Preparation of nonclassical states by displacement-based quantum scissors
Results in Physics, 2020 We theoretically study the statistical properties of non-Gaussian states generated by inputting coherent state, single-mode squeezed vacuum state and thermal state to the displacement-based single-side quantum scissor.
Cunjin Liu +4 more
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Non-Gaussian state preparation and enhancement using weak-value amplification
npj Quantum InformationWe introduce a protocol for generating non-Gaussian (nG) states via postselected weak measurement. The scheme involves injecting an arbitrary quantum state and a single photon into the signal and idler ports of an interferometer with a third-order ...
Xiao-Xi Yao, Yusuf Turek
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Entanglement of Grassmannian Coherent States for Multi-Partite n-Level Systems
Symmetry, Integrability and Geometry: Methods and Applications, 2011 In this paper, we investigate the entanglement of multi-partite Grassmannian coherent states (GCSs) described by Grassmann numbers for n>2 degree of nilpotency.
Ghader Najarbashi, Yusef Maleki
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Overcoming decoherence of Schrödinger cat states formed in a cavity using squeezed-state inputs
Physical Review Research, 2020 A cat state is a superposition of two coherent states with amplitudes α_{0} and −α_{0}. Recent experiments create cat states in a microwave cavity field using superconducting circuits.
R. Y. Teh, P. D. Drummond, M. D. Reid
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