Advances in sequential measurement and control of open quantum systems
| Autor: | Filippo Caruso, Stefano Gherardini, Andrea Smirne, Matthias M. Müller |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
open quantum systems
quantum measurements and control quantum Zeno physics noise sensing Quantum decoherence Dynamical decoupling Quantum Zeno physics Computer science Quantum dynamics FOS: Physical sciences lcsh:A Systems and Control (eess.SY) 02 engineering and technology 01 natural sciences Electrical Engineering and Systems Science - Systems and Control open quantum systems stochastic measurements Zeno effect noise spectral density Open quantum systems Open quantum system Quantum state 0103 physical sciences FOS: Electrical engineering electronic engineering information engineering Quantum system Electronic engineering ddc:530 010306 general physics Quantum information science Quantum Quantum Physics DDC 530 / Physics 021001 nanoscience & nanotechnology Quantum theory Noise sensing lcsh:General Works Quantum measurements and control Stochastische Analysis Quantum Physics (quant-ph) 0210 nano-technology |
| Zdroj: | Proceedings, Vol 12, Iss 1, p 11 (2019) |
| DOI: | 10.18725/oparu-40339 |
| Popis: | Novel concepts, perspectives and challenges in measuring and controlling an open quantum system via sequential schemes are shown. We discuss how similar protocols, relying both on repeated quantum measurements and dynamical decoupling control pulses, can allow to: (i) Confine and protect quantum dynamics from decoherence in accordance with the Zeno physics. (ii) Analytically predict the probability that a quantum system is transferred into a target quantum state by means of stochastic sequential measurements. (iii) Optimally reconstruct the spectral density of environmental noise sources by orthogonalizing in the frequency domain the filter functions driving the designed quantum-sensor. The achievement of these tasks will enhance our capability to observe and manipulate open quantum systems, thus bringing advances to quantum science and technologies. 5 pages, v2: close to the published version. Proceeding presented at the 11th Italian Quantum Information Science conference (IQIS2018), Catania, Italy, 17-20 September 2018 |
| Databáze: | OpenAIRE |
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