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Studying decoherence of cold atoms in optical lattices through 2D pump-probe spectroscopy

Samansa Maneshi, Chao Zhuang, XiaoXian Liu +2 more

Bulletin of the American Physical SocietyMay 29, 20080 citations

Characterization of dilute optical lattices using pump-probe spectroscopy and photon correlation measurements

Ethan Clements, Preston Ross, Anthony Rapp +6 more

Bulletin of the American Physical SocietyMay 26, 20160 citations

Pump-probe spectroscopy of atoms cooled in a 3D lin lin optical lattice

F.-R. Carminati, Michele Schiavoni, Yanko Todorov +2 more

The European Physical Journal DMar 1, 20036 citations

Coherence Freeze in an Optical Lattice Investigated Via Pump-Probe Spectroscopy

Samansa Maneshi, Chao Zhuang, Christopher R. Paul +2 more

Motivated by our observation of fast echo decay and a surprising coherence freeze, we have developed a pump-probe spectroscopy technique for vibrational states of 85Rb atoms in an optical lattice to gain information about the memory dynamics of the system. We monitor the time-dependent changes of frequencies experienced by atoms and characterize the probability distribution of these frequency trajectories. We show that the inferred distribution, unlike a naive microscopic model of the lattice, correctly predicts the main features of the observed echo decay.Motivated by our observation of fast echo decay and a surprising coherence freeze, we have developed a pump-probe spectroscopy technique for vibrational states of 85Rb atoms in an optical lattice to gain information about the memory dynamics of the system. We monitor the time-dependent changes of frequencies experienced by atoms and characterize the probability distribution of these frequency trajectories. We show that the inferred distribution, unlike a naive microscopic model of the lattice, correctly predicts the main features of the observed echo decay.

arXiv:1005.2635Physical Review LettersNov 4, 20106 citations

Mesoscopic Quantum Coherence in an Optical Lattice

Poul Jessen

APSMar 1, 20020 citations

Coherent Raman spectroscopy of solid‐state broadband quantum memories

Ланин Александр Александрович, Alexander A. Voronin, Andrei B. Fedotov +1 more

Abstract Coherent anti‐Stokes Raman scattering is shown to provide a versatile spectroscopic protocol for the optical interrogation of broadband quantum memories based on long‐lived coherent phonons in solids. In our scheme of coherent anti‐Stokes Raman scattering‐interrogated broadband quantum memory, a frequency‐tunable Stokes field, delivered by dispersion‐ and nonlinearity‐engineered photonic‐crystal fiber, maps the broadband pump wave packet into a memory based on coherently driven optical phonons of diamonds. The probe field is then applied with a variable delay time to read out the coherence driven by the pump and Stokes fields, giving rise to an anti‐Stokes signal, which serves to report the state of the phonon memory.Abstract Coherent anti‐Stokes Raman scattering is shown to provide a versatile spectroscopic protocol for the optical interrogation of broadband quantum memories based on long‐lived coherent phonons in solids. In our scheme of coherent anti‐Stokes Raman scattering‐interrogated broadband quantum memory, a frequency‐tunable Stokes field, delivered by dispersion‐ and nonlinearity‐engineered photonic‐crystal fiber, maps the broadband pump wave packet into a memory based on coherently driven optical phonons of diamonds. The probe field is then applied with a variable delay time to read out the coherence driven by the pump and Stokes fields, giving rise to an anti‐Stokes signal, which serves to report the state of the phonon memory.

Journal of Raman SpectroscopyMay 21, 20182 citations

Long-lived quantum coherence in a 1D optical lattice investigated using 2D pump-probe spectroscopy

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Long-lived quantum coherence in a 1D optical lattice investigated using 2D pump-probe spectroscopy

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