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7 papers · 2 filters
Generation of two-photon states with arbitrary degree of entanglement via nonlinear crystal superlattices
Alfred B. U'Ren, Reinhard K. Erdmann, Manuel de la Cruz-Gutierrez +1
We demonstrate a general method of engineering the joint quantum state of photon pairs produced in spontaneous parametric downconversion (PDC). The method makes use of a superlatti…
Theoretical Study of Fast Light with Short sech Pulses in Coherent Gain Media
B. D. Clader, J. H. Eberly
We investigate theoretically the phenomenon of so-called fast light in an unconventional regime, using pulses sufficiently short that relaxation effects in a gain medium can be ign…
Transverse Entanglement Migration in Hilbert Space
K. W. Chan, J. P. Torres, J. H. Eberly
We show that, although the amount of mutual entanglement of photons propagating in free space is fixed, the type of correlations between the photons that determine the entanglement…
Fast Light in Fully Coherent Gain Media
B. D. Clader, Q-Han Park, J. H. Eberly
We analyze the propagation of fast-light pulses through a finite-length resonant gain medium both analytically and numerically. We find that intrinsic instabilities can be avoided…
Quantum Open System Theory: Bipartite Aspects
Ting Yu, J. H. Eberly
We demonstrate in straightforward calculations that even under ideally weak noise the relaxation of bipartite open quantum systems contains elements not previously encountered in q…
Sudden Death of Entanglement: Classical Noise Effects
Ting Yu, J. H. Eberly
When a composite quantum state interacts with its surroundings, both quantum coherence of individual particles and quantum entanglement will decay. We have shown that under vacuum…