Quantum interferometry via a coherent state mixed with a photon-added squeezed vacuum state
Sign Up to like & getrecommendations! Published in 2019 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.03.068
Abstract: Abstract We theoretically investigate the phase sensitivity with parity detection on a Mach–Zehnder interferometer with a coherent state combined with a photon-added squeezed vacuum state. Our results show that when the phase shift to be… read more here.
Keywords: state; vacuum state; photon added; squeezed vacuum ... See more keywords
Temperature-mediated invocation of the vacuum state for switchable ultrawide-angle and broadband deflection
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-32977-z
Abstract: Temperature-mediated appearance and disappearance of a deflection grating in a diffracting structure is possible by employing InSb as the grating material. InSb transits from the dielectric state to the plasmonic state in the terahertz regime… read more here.
Keywords: state; vacuum state; temperature mediated; deflection ... See more keywords
Gravitational waves in a cyclic Universe: resilience through cycles and vacuum state
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2024/06/036
Abstract: We present a generalised calculation for the spectrum of primordial tensor perturbations in a cyclic Universe, making no assumptions about the vacuum state of the theory and accounting for the contribution of tensor modes produced… read more here.
Keywords: cyclic universe; dark energy; phase; vacuum state ... See more keywords
Enhancement of nonclassical properties of the two-mode squeezed vacuum state with a postselected von Neumann measurement
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.110.052611
Abstract: We investigate the effects of weak value amplification on the nonclassical properties of two-mode squeezing vacuum state. To show the advantages of the two-mode squeezing vacuum state based post-selective weak measurements. read more here.
Keywords: two mode; properties two; vacuum state; nonclassical properties ... See more keywords
Vacuum state in de Sitter spacetime with static charts
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.065014
Abstract: We study the free massive scalar field in de Sitter spacetime with static charts. In particular, we find positive-frequency modes for the Bunch-Davies vacuum state natural to the static charts as superpositions of the well-known… read more here.
Keywords: state; static charts; sitter spacetime; vacuum state ... See more keywords
Effects of imperfect elements on resolution and sensitivity of quantum metrology using two-mode squeezed vacuum state.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.024907
Abstract: It has been demonstrated that using two-mode squeezed vacuum state for phase estimation can break the Heisenberg limit. Our results reveal that the two-mode squeezed vacuum state is also applied to the optical rotation angle… read more here.
Keywords: two mode; vacuum state; squeezed vacuum; resolution sensitivity ... See more keywords
Frequency tuning of a squeezed vacuum state using interferometric enhanced acousto-optic effect.
Sign Up to like & getrecommendations! Published in 2024 at "Optics express"
DOI: 10.1364/oe.533625
Abstract: Quantum frequency conversion is one of the important tools for quantum information processing. So far, the frequency conversion of continuous variable quantum state in radio frequency range has not been demonstrated yet. Here, we experimentally… read more here.
Keywords: frequency tuning; squeezed vacuum; vacuum state; acousto optic ... See more keywords