Results 41 to 50 of about 463,178 (329)
Atomic Detection and Matter-Wave Coherence [PDF]
Physical Review Letters, 1998 We analyze several models of atomic detectors in the context of the measurement of coherence properties of matter waves. In particular, we show that an ionization scheme measures normally-ordered correlation functions of the Schr dinger field, in analogy with the optical situation.
Goldstein, E. V., Meystre, Pierre
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Distributed Target Detection with Coherent Fusion in Tracking Based on Phase Prediction
Remote SensingIn distributed radar, a coherent system often gains attention for its higher detection potential in contrast to its non-coherent counterpart. However, even for a distributed coherent radar, it is difficult to coherently accumulate local observations in ...
Aoya Wang +3 more
doaj +1 more source
Effects of loss on the phase sensitivity with parity detection in an SU(1,1) interferometer
, 2018 We theoretically study the effects of loss on the phase sensitivity of an SU(1,1) interferometer with parity detection with various input states. We show that although the sensitivity of phase estimation decreases in the presence of loss, it can still ...
Jiang, Wei +5 more
core +1 more source
Detection and discrimination of coherent motion [PDF]
Perception & Psychophysics, 1990 When viewing a pair of bars defined by the difference of spatial Gaussian functions (DOGs), human observers can discriminate accurately the relative movements of the bars, even when they differ in spatial frequency. On each trial, observers viewed two brief presentation intervals in which a pair of vertically oriented DOGs moved randomly back and forth
L, Mowafy, R, Blake, J S, Lappin
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Mitigation of Nonlinear Impairments by Using Support Vector Machine and Nonlinear Volterra Equalizer
Applied Sciences, 2019 A support vector machine (SVM) based detection is applied to different equalization schemes for a data center interconnect link using coherent 64 GBd 64-QAM over 100 km standard single mode fiber (SSMF).
Rebekka Weixer +4 more
doaj +1 more source
DP-QPSK Coherent Detection Using 2D Grating Coupled Silicon Based Receiver
IEEE Photonics Journal, 2021 We propose and demonstrate a 100 Gbit/s silicon photonic (SiPh) coherent receiver (Rx) with advanced digital signal processing (DSP) for dual-polarization quadrature-phase-shift-keying (DP-QPSK) transmission.
Ching-Wei Peng +6 more
doaj +1 more source
IEEE Photonics Journal, 2022 The inter-data center links are meeting the challenge of increasing transmission capacity continuously. Here, the tradeoff between transmission capacity and cost and power consumption especially needs to be considered.
Yuyuan Gao +6 more
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Practical resources and measurements for lossy optical quantum metrology
, 2017 We study the sensitivity of phase estimation in a lossy Mach-Zehnder interferometer (MZI) using two general, and practical, resources generated by a laser and a nonlinear optical medium with passive optimal elements, which are readily available in the ...
Jeong, Hyunseok +3 more
core +1 more source
Quantum control by compensation of quantum fluctuations [PDF]
, 1998 We show that the influence of quantum fluctuations in the electromagnetic field vacuum on a two level atom can be measured and consequently compensated by balanced homodyne detection and a coherent feedback field.
Aharonov +10 more
core +2 more sources
A self-coherent receiver for detection of PolMUX coherent signals
Optics Express, 2012 A self-coherent receiver capable of demultiplexing PolMUX-signals without an external polarization controller is presented. Training sequences are introduced to estimate the polarization rotation, and a decision feedback recursive algorithm mitigates the random walk of the recovered field.
Li, Jingshi +10 more
openaire +4 more sources