Generating Controllable Atom-Light Entanglement with a Raman Atom Laser System

Generating controllable atom-light entanglement with a Raman atom laser system.

We introduce a scheme for creating continuous variable entanglement between an atomic beam and an optical field, by using squeezed light to outcouple atoms from a Bose-Einstein condensate via a Raman transition. We model the full multimode dynamics of the atom laser beam and the squeezed optical field and show that, with appropriate two-photon detuning and two-photon Rabi frequency, the transmi...

2. Atom-light entanglement..........................................................................................3

Atom-atom entanglement by single-photon detection.

A scheme for entangling distant atoms is realized, as proposed in the seminal paper by [C. Cabrillo et al., Phys. Rev. A 59, 1025 (1999)]. The protocol is based on quantum interference and detection of a single photon scattered from two effectively one meter distant laser cooled and trapped atomic ions. The detection of a single photon heralds entanglement of two internal states of the trapped ...

Entanglement generated between a single atom and a laser pulse

We quantify the entanglement generated between an atom and a laser pulse in free space. We find that the entanglement calculated using a simple closed-system Jaynes-Cummings Hamiltonian is in remarkable agreement with a full open-system calculation, even though the free-space geometry is far from the strong-coupling regime of cavity QED. We explain this result using a simple model in which the ...

Manipulating mesoscopic multipartite entanglement with atom-light interfaces

J. Stasińska, C. Rodó, S. Paganelli, G. Birkl, and A. Sanpera Grup de Física Teòrica, Universitat Autònoma de Barcelona and Ministerio de Educación, 08193 Bellaterra, Barcelona, Spain Institut für Angewandte Physik, Technische Universität Darmstadt, 64289 Darmstadt, Germany Institució Catalana de Recerca i Estudis Avançats (ICREA), Lluís Companys 23, 08010 Barcelona, Spain Received 24 July 2009...