Results 11 to 20 of about 321,870 (268)
Weak value amplification is suboptimal for estimation and detection [PDF]
Physical Review Letters, 2014 We show using statistically rigorous arguments that the technique of weak value amplification (WVA) does not perform better than standard statistical techniques for the tasks of single parameter estimation and signal detection. Specifically we prove that
Combes, Joshua, Ferrie, Christopher
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Optimal Probe Wavefunction of Weak-Value Amplification [PDF]
Physical Review A, 2012 The weak measurement proposed by Aharonov and his colleagues extracts information of a physical quantity of the system by the post selection as the shifts of the argument of the probe wavefunction. The shift is called the weak value and is larger for the
Hosoya, Akio +2 more
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Ultrasensitive Beam Deflection Measurement via Interferometric Weak Value Amplification [PDF]
Physical Review Letters, 2009 We report on the use of an interferometric weak value technique to amplify very small transverse deflections of an optical beam. By entangling the beam's transverse degrees of freedom with the which-path states of a Sagnac interferometer, it is possible ...
Dixon, P. Ben +3 more
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Enhanced Weak-Value Amplification via Photon Recycling [PDF]
Physical Review Letters, 2021 In a quantum-noise limited system, weak-value amplification using post-selection normally does not produce more sensitive measurements than standard methods for ideal detectors: the increased weak value is compensated by the reduced power due to the small post-selection probability.
Courtney Krafczyk +3 more
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Entanglement-assisted weak value amplification [PDF]
Physical Review Letters, 2014 Large weak values have been used to amplify the sensitivity of a linear response signal for detecting changes in a small parameter, which has also enabled a simple method for precise parameter estimation.
Brun, Todd A. +2 more
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Weak value amplification of atomic cat states
New Journal of Physics, 2015 We show the utility of the weak value amplification to observe the quantum interference between two close lying atomic coherent states in a post-selected atomic cat state, produced in a system of N identical two-level atoms weakly interacting with a ...
Sumei Huang, Girish S Agarwal
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Amplification of Angular Rotations Using Weak Measurements [PDF]
Physical Review Letters, 2014 We present a weak measurement protocol that permits a sensitive estimation of angular rotations based on the concept of weak-value amplification. The shift in the state of a pointer, in both angular position and the conjugate orbital angular momentum ...
Boyd, Robert W. +3 more
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Complementary weak-value amplification with concatenated postselections [PDF]
Physical Review A, 2016 We measure a transverse momentum kick in a Sagnac interferometer using weak-value amplification with two postselections. The first postselection is controlled by a polarization dependent phase mismatch between both paths of a Sagnac interferometer and ...
Howell, John C. +3 more
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Weak value amplification in a shot-noise limited interferometer [PDF]
Physical Review A, 2012 We study the weak-value amplification (WVA) in a phase measurement with an optical interferometer in which shot noise limits the sensitivity. We compute the signal and the shot noise including the full-order interaction terms of the WVA, and show that ...
Atsushi Nishizawa +3 more
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Adaptive weak-value amplification with adjustable postselection [PDF]
Physical Review A, 2017 Weak-value amplification (WVA) has recently become an important technique for parameter estimation, owing to its ability to enhance the signal-to-noise ratio by amplifying extremely small signals with proper postselection strategies.
Huang, Jingzheng, Li, Fei, Zeng, Guihua
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