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Quantum-enhanced sensing based on time reversal of entangling interactions

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Quantum-enhanced sensing based on time reversal of entangling interactions/ by Daniel Linnemann.
作者:	Linnemann, Daniel.
出版者:	Cham :Springer International Publishing : : 2018.,
面頁冊數:	xviii, 165 p. :digital ; : 24 cm.;
Contained By:	Springer eBooks
標題:	Quantum theory. -
電子資源:	http://dx.doi.org/10.1007/978-3-319-96008-1
ISBN:	9783319960081

Quantum-enhanced sensing based on time reversal of entangling interactions
Linnemann, Daniel.

Quantum-enhanced sensing based on time reversal of entangling interactions[electronic resource] /by Daniel Linnemann. - Cham :Springer International Publishing :2018. - xviii, 165 p. :digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- Part I: Theoretical Basics -- Quantum Mechanical Spin -- Hamiltonian of a Spin-1 Bose-Einstein Condensate -- Part II: Concepts of Time Reversal Interferometry -- Spin Exchange as an Ampliﬁer -- Interferometry Concept Within the SU(1,1) Framework -- Part III: Experimental Platform -- Experimental System and Manipulation Techniques -- Part IV: Experimental Results -- State and Process Characterization -- Quantum-Enhanced Sensing Based on Time Reversal -- Interferometry Beyond Exact Time Reversal -- Nonlinear Time Reversal as a Diagnostic Tool -- Outlook.

Quantum mechanics entails effects like superpositions and entanglement, which have no classical counterparts. From a technological standpoint these counterintuitive quantum aspects can be viewed as an unexploited resource that can be harnessed to support various tasks, e.g. in the domains of computation, communication, and metrology. In many applications, however, the potential of nonclassical states cannot practically be exploited due to detection inefficiencies. The authors address this limitation by experimentally realizing a novel detection scheme in which entangling interactions are time reversed. In this way, nonclassical many-particle states are disentangled, allowing them to be detected in a robust and technically feasible manner. In the context of quantum metrology, these nonlinear readout techniques extend the class of entangled probe states that can be leveraged for sensing applications without being limited by finite detector resolution. The authors present an active atom interferometer, where both the entangled state preparation and disentangling readout involve parametric amplification. This "SU(1,1)" interferometer is implemented with the help of spinor Bose-Einstein condensates, where amplification is implemented by atomic collisions leading to spin exchange.

ISBN: 9783319960081

Standard No.: 10.1007/978-3-319-96008-1doiSubjects--Topical Terms:

568041
Quantum theory.

LC Class. No.: QC174.12 / .L566 2018

Dewey Class. No.: 530.12

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