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7 papers · 1 filter
Quantum Interferometric Sensors
Kishore T. Kapale, Leo D. Didomenico, Hwang Lee +2
Quantum entanglement has the potential to revolutionize the entire field of interferometric sensing by providing many orders of magnitude improvement in interferometer sensitivity.…
The Vortex Phase Qubit: Generating Arbitrary, Counter-Rotating, Coherent Superpositions in Bose-Einstein Condensates via Optical Angular Momentum Beams
Kishore T. Kapale, Jonathan P. Dowling
We propose a scheme for generation of arbitrary coherent superposition of vortex states in Bose-Einstein condensates (BEC) using the orbital angular momentum (OAM) states of light.…
Multi-Partite Entanglement Inequalities via Spin Vector Geometry
Gabriel A. Durkin, Christoph Simon
We introduce inequalities for multi-partite entanglement, derived from the geometry of spin vectors. The criteria are constructed iteratively from cross and dot products between th…
Quantum key distribution without reference frame alignment: Exploiting photon orbital angular momentum
Federico M. Spedalieri
We present a new implementation of the BB84 quantum key distribution protocol that employs a -dimensional Hilbert space spanned by spatial modes of the propagating beam that hav…
Detecting multipartite entanglement
Andrew C. Doherty, Pablo A. Parrilo, Federico M. Spedalieri
We discuss the problem of determining whether the state of several quantum mechanical subsystems is entangled. As in previous work on two subsystems we introduce a procedure for ch…
Securing QKD Links in the Full Hilbert Space
Deborah J. Jackson, George M. Hockney
Many quantum key distribution analyses examine the link security in a subset of the full Hilbert space that is available to describe the system. In reality, information about the p…