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7 papers · 2 filters
Modeling lossy propagation of non-classical light
Ulvi Yurtsever
The lossy propagation law (generalization of Lambert-Beer's law for classical radiation loss) for non-classical, dual-mode entangled states is derived from first principles, using…
Ultra-Stable Matter-Wave Gyroscopy with Counter-Rotating Vortex Superpositions in Bose-Einstein Condensates
Sulakshana Thanvanthri, Kishore T. Kapale, Jonathan P. Dowling
Matter-wave interferometers are, in principle, orders of magnitude more sensitive than their optical counterparts. Nevertheless, creation of matter-wave currents to achieve such a…
Dimensions, nodes and phases in quantum numbers
A. R. P. Rau
Students of quantum mechanics encounter discrete quantum numbers in a somewhat incoherent and bewildering number of ways. For each physical system studied, quantum numbers seem to…
Finite Geometries with Qubit Operators
Ambar N. Sengupta
Finite projective geometries, especially the Fano plane, have been observed to arise in the context of certain quantum gate operators. We use Clifford algebras to explain why these…
Quantum Optical Metrology -- The Lowdown on High-N00N States
Jonathan P. Dowling
Quantum states of light, such as squeezed states or entangled states, can be used to make measurements (metrology), produce images, and sense objects with a precision that far exce…
Free will, undecidability, and the problem of time in quantum gravity
Rodolfo Gambini, Jorge Pullin
In quantum gravity there is no notion of absolute time. Like all other quantities in the theory, the notion of time has to be introduced "relationally", by studying the behavior of…