Publications (11)
Self-Similar Modes of Coherent Diffusion
O. Firstenberg, P. London, D. Yankelev +3
Self-similar solutions of the coherent diffusion equation are derived and measured. The set of real similarity solutions is generalized by the introduction of a nonuniform phase su…
Electromagnetically Induced Transparency and Light Storage in an Atomic Mott Insulator
U. Schnorrberger, J. D. Thompson, S. Trotzky +4
We experimentally demonstrate electromagnetically induced transparency and light storage with ultracold 87Rb atoms in a Mott insulating state in a three dimensional optical lattice…
Identifying the Bose glass phase
R. Pugatch, N. Bar-gill, N. Katz +2
Introducing disorder into the Bose-Hubbard model at integer fillings leads to a Bose glass phase, along with the Mott insulator and superfluid phases. We suggest a new order parame…
Measurement of Dicke Narrowing in Electromagnetically Induced Transparency
M. Shuker, O. Firstenberg, R. Pugatch +3
Dicke narrowing is a phenomena that dramatically reduces the Doppler width of spectral lines, due to frequent velocity-changing collisions. A similar phenomena occurs for electroma…
Damping of bulk excitations over an elongated BEC - the role of radial modes
E. E. Rowen, N. Bar-Gill, R. Pugatch +1
We report the measurement of Beliaev damping of bulk excitations in cigar shaped Bose Einstein condensates of atomic vapor. By using post selection, excitation line shapes of the t…
Universal Spectra of Coherent Atoms in a Recurrent Random Walk
R. Pugatch, O. Firstenberg, M. Shuker +1
The probability of a random walker to return to its starting point in dimensions one and two is unity, a theorem first proven by G. Polya. The recurrence probability -- the probabi…
Storing images in warm atomic vapor
M. Shuker, O. Firstenberg, R. Pugatch +2
Reversible and coherent storage of light in atomic medium is a key-stone of future quantum information applications. In this work, arbitrary two-dimensional images are slowed and s…
Theory of Thermal Motion in Electromagnetically Induced Transparency: Diffusion, Doppler, Dicke and Ramsey
O. Firstenberg, M. Shuker, R. Pugatch +3
We present a theoretical model for electromagnetically induced transparency (EIT) in vapor, that incorporates atomic motion and velocity-changing collisions into the dynamics of th…
Direct observation of a localization transition in quasi-periodic photonic lattices
Y. Lahini, R. Pugatch, F. Pozzi +4
The localization of waves in non-periodic media is a universal phenomenon, occurring in a variety of different quantum and classical systems, including condensed-matter, Bose-Einst…
Dressed state approach to matter wave mixing of bosons
E. Rowen, R. Ozeri, N. Katz +2
A dressed state approach to mixing of bosonic matter waves is presented. Two cases are studied using this formalism. In the first, two macroscopically populated modes of atoms (two…
Topological stability of stored optical vortices
R. Pugatch, M. Shuker, O. Firstenberg +2
We report an experiment in which an optical vortex is stored in a vapor of Rb atoms. Due to its 2Ïphase twist, this mode, also known as the Laguerre-Gauss mode, is topologically s…