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10 papers · 1 filter
Verifying multi-partite mode entanglement of W states
Pavel Lougovski, S. J. van Enk, Kyung Soo Choi +3
We construct a method for verifying mode entanglement of N-mode W states. The ideal W state contains exactly one excitation symmetrically shared between N modes, but our method tak…
The joys of permutation symmetry: direct measurements of entanglement
S. J. van Enk
So-called direct measurements of entanglement are collective measurements on multiple copies of a (bipartite or multipartite) quantum system that directly provide one a value for s…
Self-Spin-Controlled Rotation of Spatial States of a Dirac Electron in a Cylindrical Potential via Spin-Orbit Interaction
C. C. Leary, D. Reeb, M. G. Raymer
Solution of the Dirac equation predicts that when an electron with non-zero orbital angular momentum propagates in a cylindrically symmetric potential, its spin and orbital degrees…
Photon pair-state preparation with tailored spectral properties by spontaneous four-wave mixing in photonic-crystal fiber
K. Garay-Palmett, H. J. McGuinness, Offir Cohen +7
We study theoretically the generation of photon pairs by spontaneous four-wave mixing (SFWM) in photonic crystal optical fiber. We show that it is possible to engineer two-photon s…
Photon wave functions, wave-packet quantization of light, and coherence theory
Brian J. Smith, M. G. Raymer
The monochromatic Dirac and polychromatic Titulaer-Glauber quantized field theories (QFTs) of electromagnetism are derived from a photon-energy wave function in much the same way t…
A toy model for quantum mechanics
S. J. van Enk
The toy model used by Spekkens [R. Spekkens, Phys. Rev. A 75, 032110 (2007)] to argue in favor of an epistemic view of quantum mechanics is extended by generalizing his definition…