ua nt - p h / 99 02 00 5 v 2 2 4 Ju n 19 99 Photon - photon interactions in cavity electromagnetically induced transparency

ar X iv : q ua nt - p h / 07 02 00 3 v 1 3 1 Ja n 20 07 QUANTUM PHASE TRANSITIONS WITH PHOTONS AND POLARITONS

We show that a system of polaritons-combined atom and photon excitations-in an array of coupled cavities, under an experimental setup usually considered in electromagnetically induced transparency, is described by the Bose-Hubbard model. This opens up the possibility of using this system as a quantum simulator, allowing for the observation of quantum phase transitions and for the measurement of...

ua nt - p h / 98 07 06 3 v 1 2 2 Ju l 1 99 8 Twin - photon techniques for fiber measurements

5 v 1 1 F eb 1 99 9 Quantum limit of photon - photon interactions using electromagnetically induced transparency

Quantum limit of dissipation-free photon-photon interactions at the few photon level is studied in the context of giant Kerr nonlinearities in cavity electromagnetically induced transparency (EIT). It is shown that photon-photon interaction is largest when the cavity contains a single atom. In contrast to conventional nonlinearities, increasing the number of atoms cannot increase the interactio...

ar X iv : q ua nt - p h / 03 11 09 2 v 3 1 7 N ov 2 00 3 Stationary Pulses of Light in an Atomic Medium

Physical processes that could facilitate coherent control of light propagation are now actively explored [1, 2, 3, 4, 5]. In addition to fundamental interest, these efforts are stimulated by possibilities to develop, for example, a quantum memory for photonic states [6, 7, 8]. At the same time, controlled localization and storage of photonic pulses may allow novel approaches to manipulate light...

nt - p h / 04 02 03 1 v 1 4 Fe b 20 04 Generation of atom - photon entangled states in atomic Bose - Einstein condensate via electromagnetically induced transparency

In this paper, we present a method to generate continuous-variable-type entangled states between photons and atoms in atomic Bose-Einstein condensate (BEC). The proposed method involves an atomic BEC with three internal states, a weak quantized probe laser and a strong classical coupling laser, which form a three-level Λ-shaped BEC system. We consider a situation where the BEC is in electromagn...