1k citations · 1k across the 1 of their papers we have counts for
6 papers
Experimental long-lived entanglement of two macroscopic objects
Brian Julsgaard, Alexander Kozhekin, Eugene S. Polzik
Entanglement is considered to be one of the most profound features of quantum mechanics. An entangled state of a system consisting of two subsystems cannot be described as a produc…
Quantum Memory for Light
A. E. Kozhekin, K. Molmer, E. Polzik
We propose an efficient method for mapping and storage of a quantum state of propagating light in atoms. The quantum state of the light pulse is stored in two sublevels of the grou…
Standing and Moving Gap Solitons in Resonantly Absorbing Gratings
A. E. Kozhekin, G. Kurizki, Boris A. Malomed
We present hitherto unknown forms of soliton dynamics in the forbidden frequency gap of a Bragg reflector, modified by periodic layers of near-resonant two-level systems (TLS). Rem…
Optical Tachyons in Parametric Amplifiers: How Fast Can Quantum Information Travel?
G. Kurizki, A. E. Kozhekin, A. G. Kofman +1
We show that optical tachyonic dispersion corresponding to superluminal (faster than-light) group velocities characterizes parametrically amplifying media. The turn-on of parametri…
Superluminal Optical Phase Conjugation: Pulse Reshaping and Instability
M. Blaauboer, A. G. Kofman, A. E. Kozhekin +3
We theoretically investigate the response of optical phase conjugators to incident probe pulses. In the stable (sub-threshold) operating regime of an optical phase conjugator it is…
Superluminal pulse transmission through a phase-conjugating mirror
M. Blaauboer, A. E. Kozhekin, A. G. Kofman +3
We theoretically analyze wave packet transmission through a phase-conjugating mirror and show that the transmission of a suitably chosen input pulse is superluminal, i.e. the peak…