197 citations · 1.2k across the 29 of their papers we have counts for
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Transition from pure-state to mixed-state entanglement by random scattering
J. L. van Velsen, C. W. J. Beenakker
We calculate the effect of polarization-dependent scattering by disorder on the degree of polarization-entanglement of two beams of radiation. Multi-mode detection converts an init…
Charge detection enables free-electron quantum computation
C. W. J. Beenakker, D. P. DiVincenzo, C. Emary +1
It is known that a quantum computer operating on electron-spin qubits with single-electron Hamiltonians and assisted by single-spin measurements can be simulated efficiently on a c…
Relation between entanglement measures and Bell inequalities for three qubits
C. Emary, C. W. J. Beenakker
For two qubits in a pure state there exists a one-to-one relation between the entanglement measure (the concurrence ) and the maximal violation of a Bell inequ…
Scattering theory of plasmon-assisted entanglement transfer and distillation
J. L. van Velsen, J. Tworzydlo, C. W. J. Beenakker
We analyse the quantum mechanical limits to the plasmon-assisted entanglement transfer observed by E. Altewischer, M.P. van Exter, and J.P. Woerdman [Nature, 418, 304 (2002)]. The…
Anomalous power law of quantum reversibility for classically regular dynamics
Ph. Jacquod, I. Adagideli, C. W. J. Beenakker
The Loschmidt Echo M(t) (defined as the squared overlap of wave packets evolving with two slightly different Hamiltonians) is a measure of quantum reversibility. We investigate its…
Quantum-optical communication rates through an amplifying random medium
J. Tworzydlo, C. W. J. Beenakker
We study the competing effects of stimulated and spontaneous emission on the information capacity of an amplifying disordered waveguide. At the laser threshold the capacity reaches…