Journal ArticleDOI
Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency.
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TLDR
The direct measurement of 15 dB squeezed vacuum states of light and their application to calibrate the quantum efficiency of photoelectric detection and a customized InGaAs positive intrinsic negative photodiode optimized for high external quantum efficiency are reported on.Abstract:
Researchers have created quantum states of light whose noise level has been ``squeezed'' to a record low.read more
Citations
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Antiferromagnetic magnons as highly squeezed Fock states underlying quantum correlations
Akashdeep Kamra,Even Thingstad,Gianluca Rastelli,Rembert A. Duine,Rembert A. Duine,Rembert A. Duine,Arne Brataas,Wolfgang Belzig,Asle Sudbø +8 more
TL;DR: In this article, the authors demonstrate a revealing physical picture for the antiferromagnetic ground state and excitations, employing the concept of two-mode squeezed states from quantum optics.
Journal ArticleDOI
Towards the Design of Gravitational-Wave Detectors for Probing Neutron-Star Physics
TL;DR: In this article, the authors proposed a detector design that reduces the high-frequency quantum noise with an active optomechanical filter, frequency-dependent squeezing, and high optical power.
Journal ArticleDOI
Efficient parametric frequency conversion in lithium niobate nanophotonic chips
TL;DR: In this article, an optimally mode-matched, periodically poled lithium niobate nanowaveguide was proposed for parametric frequency conversion on chip, achieving second harmonic generation with efficiency over 2200% and broadband difference frequency generation over a 4.3-THz spectral span.
Journal ArticleDOI
Optimal Gaussian measurements for phase estimation in single-mode Gaussian metrology
Changhun Oh,Changhyoup Lee,Carsten Rockstuhl,Hyunseok Jeong,Jaewan Kim,Hyunchul Nha,Hyunchul Nha,Su-Yong Lee +7 more
TL;DR: In this paper, the authors identify three types of optimal Gaussian measurement setups yielding the maximal Fisher information depending on displacement, squeezing, and thermalization of the probe state, and show that the homodyne measurement attains the ultimate bound for both displaced thermal probe states and squeezed vacuum probe states.
Journal ArticleDOI
Quantum Secret Sharing Among Four Players Using Multipartite Bound Entanglement of an Optical Field.
TL;DR: The presented QSS scheme has the capability to protect secrets from eavesdropping and dishonest players, because a nonlocal and deterministic BE state is shared among four authorized players.
References
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Phd by thesis
TL;DR: In this paper, a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) is presented.
Journal ArticleDOI
Observation of squeezed light with 10-dB quantum-noise reduction.
H. Vahlbruch,Moritz Mehmet,Nico Lastzka,Boris Hage,Simon Chelkowski,Alexander Franzen,S. Gossler,Karsten Danzmann,Roman Schnabel +8 more
TL;DR: It is shown experimentally that strong squeezing of light's quantum noise is possible and reached a benchmark squeezing factor of 10 in power (10 dB).