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      Nonlocal Nonlinear Optics in cold Rydberg Gases

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          Abstract

          We present an analytical theory for the nonlinear optical response of a strongly interacting Rydberg gas under conditions of electromagnetically induced transparency. Simple formulae for the third order optical susceptibility are derived and shown to be in excellent agreement with recent experiments. The obtained expressions reveal strong nonlinearities, which in addition are of highly nonlocal character. This property together with enormous strength of the Rydberg-induced nonlinearities is shown to yield a unique laboratory platform for nonlinear wave phenomena, such as collapse-arrested modulational instabilities in a self-defocussing medium.

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          Quantum memory for photons: I. Dark state polaritons

          , (2001)
          An ideal and reversible transfer technique for the quantum state between light and metastable collective states of matter is presented and analyzed in detail. The method is based on the control of photon propagation in coherently driven 3-level atomic media, in which the group velocity is adiabatically reduced to zero. Form-stable coupled excitations of light and matter (``dark-state polaritons'') associated with the propagation of quantum fields in Electromagnetically Induced Transparency are identified, their basic properties discussed and their application for quantum memories for light analyzed.
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            Collapse arrest and soliton stabilization in nonlocal nonlinear media

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              Route to nonlocality and observation of accessible solitons

              , , (2003)
              We develop a general theory of spatial solitons in a liquid crystalline medium exhibiting a nonlinearity with an arbitrary degree of effective nonlocality. The model accounts the observability of "accessible solitons" and establishes an important link with parametric solitons.
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                Author and article information

                Journal
                10 June 2011
                Article
                10.1103/PhysRevLett.107.153001
                1106.2001
                8dff4924-ea43-433b-b48e-57315de029e2

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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                Custom metadata
                5 pages, 5 figures
                physics.atom-ph cond-mat.quant-gas physics.optics

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