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
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Enhancing atom-field interaction in the reduced multiphoton Tavis-Cummings model
TL;DR: In this paper, the authors proposed a scheme to enhance the light-matter coupling in a cavity QED system where two $\mathrm{\ensuremath{\Lambda}}$ atoms are weakly coupled to a single-mode cavity via multiphoton interaction.
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Time-domain analysis on the pulsed squeezed vacuum detected with picosecond pulses
Yoshitaka Taguchi,Yasuyuki Ozeki +1 more
TL;DR: In this paper, the authors investigate the effect of the frequency chirp of local oscillator (LO) pulses and show that there exists an upper bound of the CHR parameter for a given squeezing level, and point out the importance of temporal broadening in nonlinear optical crystals for squeezing.
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Long-distance continuous-variable quantum key distribution using separable Gaussian states
Jian Zhou,Duan Huang,Ying Guo +2 more
TL;DR: In this paper, a scheme for implementing long-distance continuous-variable quantum key distribution (CVQKD) using separable Gaussian states is presented. But the scheme is restricted to metropolitan areas, given that it is affected by the channel excess noise and losses.
Compact squeezed-light source at 1550 nm
TL;DR: In this paper, the authors presented a portable and fully automatic source based on parametric down-conversion set up on a breadboard of 1.35 m x 1.13 m.
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Balanced Homodyne Detector With Independent Phase Control and Noise Detection Branches
TL;DR: A balanced homodyne detector (BHD) with independent phase control and noise detection branches is presented, and the two branches are independently optimized according to the practical requirements.
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).