Accession Number : ADA572921


Title :   Coherent-feedback Quantum Control with Cold Atomic Spins


Descriptive Note : Final rept. 15 Sep 2008-15 Mar 2012


Corporate Author : STANFORD UNIV CA


Personal Author(s) : Mabuchi, Hideo


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a572921.pdf


Report Date : 27 Aug 2012


Pagination or Media Count : 7


Abstract : We have performed a series of theoretical and experimental research projects to support the development of coherent-feedback quantum control and to stimulate interest in the subject from a wider research community. Coherent-feedback quantum control is a qualitatively new branch of control engineering with direct relevance to nanoscale and quantum technologies, which draws heavily upon the novel modeling framework of quantum stochastic differential equations. Our main goals in this work have been to establish the practical utility of such new control and analysis techniques in atomic and optical physics applications, to understand what degradation (if any) should be expected in the real-world performance of coherent-feedback quantum control schemes that are derived using idealized models, and to begin to connect known, intuitive coherent feedback schemes to formal synthesis methods from optimal control theory.


Descriptors :   *QUANTUM THEORY , CONTROL THEORY , DIFFERENTIAL EQUATIONS , LOW TEMPERATURE , OPTIMIZATION , QUANTUM OPTICS , STOCHASTIC PROCESSES


Subject Categories : Quantum Theory and Relativity


Distribution Statement : APPROVED FOR PUBLIC RELEASE