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Q-FARM presents "Quantum Metrology in the Era of Quantum Information"

Quantum Metrology in the Era of Quantum Information
Wednesday, July 22, 2020 - 10:00am
Meeting ID: 987 676 025; + password)
Rafał Demkowicz-Dobrzański (University of Warsaw, Poland)
Abstract / Description: 

I will review the most recent advances in the theoretical methods of quantum metrology, focusing on the quantum information related concepts such as quantum error-correction and matrix product states formalism. The aim of the talk is to show how the two fields, quantum metrology and quantum information, are closely connected and how they can benefit from each other. The talk will be based on three papers:

[1] R. Demkowicz-Dobrzanski, J. Czajkowski, P. Sekatski, Adaptive quantum metrology under general Markovian noise, Phys. Rev. X 7, 041009 (2017)

[2] K. Chabuda, J. Dziarmaga, T. J. Osborne, R.Demkowicz-Dobrzanski, Tensor-Network Approach for Quantum Metrology in Many-Body Quantum Systems, Nat. Commun. 11, 250 (2020)

[3] A. Kubica, R. Demkowicz-Dobrzanski, Using Quantum Metrological Bounds in Quantum Error Correction: A Simple Proof of the Approximate Eastin-Knill Theorem, arXiv:2004.11893 (2020)


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Rafał Demkowicz-Dobrzański is an associate professor of physics at University of Warsaw, Poland. His field of interest is quantum information theory with special focus on quantum metrology.