scholarly journals Weak value amplification: a view from quantum estimation theory that highlights what it is and what isn’t

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Juan P. Torres ◽  
Luis José Salazar-Serrano
Keyword(s):  
Estimation Theory ◽  
Weak Value ◽  
Weak Value Amplification

scholarly journals Enhanced Weak-Value Amplification via Photon Recycling

2021 ◽  
Vol 126 (22) ◽  
Author(s):  
Courtney Krafczyk ◽  
Andrew N. Jordan ◽  
Michael E. Goggin ◽  
Paul G. Kwiat
Keyword(s):  
Weak Value ◽  
Photon Recycling ◽  
Weak Value Amplification

scholarly journals Enhanced on-chip frequency measurement using weak value amplification

2022 ◽  
Author(s):  
John Steinmetz ◽  
Kevin Lyons ◽  
Meiting Song ◽  
Jaime Cardenas ◽  
Andrew Jordan
Keyword(s):  
Frequency Measurement ◽  
Weak Value ◽  
On Chip ◽  
Weak Value Amplification

scholarly journals Quantum sensors based on weak-value amplification cannot overcome decoherence

2013 ◽  
Vol 87 (1) ◽  
Author(s):  
George C. Knee ◽  
G. Andrew D. Briggs ◽  
Simon C. Benjamin ◽  
Erik M. Gauger
Keyword(s):  
Weak Value ◽  
Weak Value Amplification

scholarly journals Weak-value-amplification analysis beyond the Aharonov-Albert-Vaidman limit

2020 ◽  
Vol 102 (4) ◽  
Author(s):  
Jianhua Ren ◽  
Lupei Qin ◽  
Wei Feng ◽  
Xin-Qi Li
Keyword(s):  
Weak Value ◽  
Weak Value Amplification

scholarly journals Natural weak value amplification in Fano resonance and giant Faraday rotation in magneto-plasmonic crystal

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Shyamal Guchhait ◽  
Athira B S ◽  
Niladri Modak ◽  
Jeeban Kumar Nayak ◽  
Anwesha Panda ◽  
...  
Keyword(s):  
Faraday Rotation ◽  
Fano Resonance ◽  
Weak Value ◽  
Plasmonic Crystal ◽  
Weak Value Amplification

scholarly journals Experimental probe of weak-value amplification and geometric phase through the complex zeros of the response function

2019 ◽  
Vol 99 (3) ◽  
Author(s):  
Mandira Pal ◽  
Sudipta Saha ◽  
Athira B S ◽  
Subhasish Dutta Gupta ◽  
Nirmalya Ghosh
Keyword(s):  
Response Function ◽  
Geometric Phase ◽  
Weak Value ◽  
Complex Zeros ◽  
Weak Value Amplification

scholarly journals Comparative Weak Value Amplification as an Approach to Estimating the Value of Small Quantum Mechanical Interactions

2016 ◽  
Vol 23 (3) ◽  
pp. 393-401 ◽  
Author(s):  
Allen D. Parks ◽  
Scott E. Spence
Keyword(s):  
Laser Beam ◽  
Measurement Technique ◽  
Quantum Mechanical ◽  
Weak Value ◽  
Measurement Apparatus ◽  
Air Interface ◽  
Small Quantum ◽  
Comparative Methodology ◽  
Weak Value Amplification ◽  
Linear Nature

AbstractWeak value amplification is a measurement technique where small quantum mechanical interactions are amplified and manifested macroscopically in the output of a measurement apparatus. It is shown here that the linear nature of weak value amplification provides a straightforward comparative methodology for using the value of a known small interaction to estimate the value of an unknown small interaction. The methodology is illustrated by applying it to quantify the unknown size of an optical Goos-Hänchen shift of a laser beam induced at a glass/gold interface using the known size of the shift at a glass/air interface.

scholarly journals Weak-value amplification: state of play

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
George C. Knee ◽  
Joshua Combes ◽  
Christopher Ferrie ◽  
Erik M. Gauger
Keyword(s):  
Quantum Theory ◽  
Signal Amplification ◽  
Weak Measurement ◽  
Experimental Results ◽  
Weak Values ◽  
Theoretical Studies ◽  
Weak Value ◽  
Metrological Performance ◽  
Weak Value Amplification ◽  
Theory And Experiment

AbstractWeak values arise in quantum theory when the result of a weak measurement is conditioned on a subsequent strong measurement. The majority of the trials are discarded, leaving only very few successful events. Intriguingly those can display a substantial signal amplification. This raises the question of whether weak values carry potential to improve the performance of quantum sensors, and indeed a number of impressive experimental results suggested this may be the case. By contrast, recent theoretical studies have found the opposite: using weak-values to obtain an amplification generally worsens metrological performance. This survey summarises the implications of those studies, which call for a reappraisal of weak values’ utility and for further work to reconcile theory and experiment.

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