588 citations · 1.2k across the 34 of their papers we have counts for
6 papers · 1 filter
Atoms, dipole waves, and strongly focused light beams
S. J. van Enk
We describe the resonant interaction of an atom with a strongly focused light beam by expanding the field in multipole waves. For a classical field, or when the field is described…
Reduction Theorems for Optimal Unambiguous State Discrimination of Density Matrices
Philippe Raynal, Norbert Lütkenhaus, Steven J. van Enk
We present reduction theorems for the problem of optimal unambiguous state discrimination (USD) of two general density matrices. We show that this problem can be reduced to that of…
On continuous-variable entanglement with and without phase references
S. J. van Enk, Terry Rudolph
We discuss how continous-variable quantum states such as coherent states and two-mode squeezed states can be encoded in phase-reference independent ways.
On entanglement capabilities in infinite dimensions or multi-dimensional entangled coherent states
S. J. van Enk
An example is given of an interaction that produces an infinite amount of entanglement in an infinitely short time, but only a finite amount in longer times. The interaction arises…
Quantum communication protocols using the vacuum
Xiatra Anderson, S. J. van Enk, Terry Rudolph
We speculate what quantum information protocols can be implemented between two accelerating observers using the vacuum. Whether it is in principle possible or not to implement a pr…
Reply to ``Comment on ``Some implications of the quantum nature of laser fields for quantum computations'' ''
S. J. van Enk, H. J. Kimble
We point out several superficialities in Itano's comment (quant-ph/0211165).