Quantum‐Enhanced Sensing Based on Time Reversal of

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Quantum‐Enhanced Sensing Based on Time Reversal of Entangling Interactions (Springer Theses)

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 â€œSU(1,1)â€ interferometer is implemented with the help of spinor Boseâ€“Einstein condensates, where amplification is implemented by atomic collisions leading to spin exchange.
Country USA
Brand Springer
Manufacturer Springer
Binding Hardcover
ItemPartNumber 52889530
ReleaseDate 2018-07-29
UnitCount 1
EANs 9783319960074

Country	USA
Brand	Springer
Manufacturer	Springer
Binding	Hardcover
ItemPartNumber	52889530
ReleaseDate	2018-07-29
UnitCount	1
EANs	9783319960074

Quantum‐Enhanced Sensing Based on Time Reversal of Entangling Interactions (Springer Theses)