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Superfluid-Mott-Insulator Transition

Manuel Endres

Springer thesesJan 1, 20142 citations

Imaging the Mott Insulator Shells by Using Atomic Clock Shifts

Gretchen K. Campbell, Jongchul Mun, Micah Boyd +5 more

Microwave spectroscopy was used to probe the superfluid-Mott insulator transition of a Bose-Einstein condensate in a three-dimensional optical lattice. By using density-dependent transition frequency shifts, we were able to spectroscopically distinguish sites with different occupation numbers and to directly image sites with occupation numbers from one to five, revealing the shell structure of the Mott insulator phase. We used this spectroscopy to determine the onsite interaction and lifetime for individual shells.Microwave spectroscopy was used to probe the superfluid-Mott insulator transition of a Bose-Einstein condensate in a three-dimensional optical lattice. By using density-dependent transition frequency shifts, we were able to spectroscopically distinguish sites with different occupation numbers and to directly image sites with occupation numbers from one to five, revealing the shell structure of the Mott insulator phase. We used this spectroscopy to determine the onsite interaction and lifetime for individual shells.

arXiv:cond-mat/0606642ScienceAug 3, 2006251 citations

The superfluid-to-Mott insulator transition and the birth of experimental quantum simulation

Immanuel Bloch, Markus Greiner

Nature Reviews PhysicsSep 20, 202212 citations

Exploring Correlated 1D Bose Gases from the Superfluid to the Mott-Insulator State by Inelastic Light Scattering

David Clément, Nicole Fabbri, L. Fallani +2 more

We report the Bragg spectroscopy of interacting one-dimensional Bose gases loaded in an optical lattice across the superfluid to the Mott-insulator phase transition. Elementary excitations are created with a nonzero momentum and the response of the correlated 1D gases is in the linear regime. The complexity of the strongly correlated quantum phases is directly displayed in the spectra which exhibit novel features. This work paves the way for a precise characterization of the state of correlated gases in optical lattices.We report the Bragg spectroscopy of interacting one-dimensional Bose gases loaded in an optical lattice across the superfluid to the Mott-insulator phase transition. Elementary excitations are created with a nonzero momentum and the response of the correlated 1D gases is in the linear regime. The complexity of the strongly correlated quantum phases is directly displayed in the spectra which exhibit novel features. This work paves the way for a precise characterization of the state of correlated gases in optical lattices.

arXiv:0812.4530Physical Review LettersApr 13, 2009140 citations

Measurements of Collective Modes Spanning the 3-D Superfluid to Mott-Insulator Transition

David C. McKay, Matt White, Matthew Pasienski +2 more

Bulletin of the American Physical SocietyJun 7, 20070 citations

Formation of Spatial Shell Structure in the Superfluid to Mott Insulator Transition

Simon Fölling, Artur Widera, Torben Müller +2 more

We report on the direct observation of the transition from a compressible superfluid to an incompressible Mott insulator by recording the in-trap density distribution of a Bosonic quantum gas in an optical lattice. Using spatially selective microwave transitions and spin-changing collisions, we are able to locally modify the spin state of the trapped quantum gas and record the spatial distribution of lattice sites with different filling factors. As the system evolves from a superfluid to a Mott insulator, we observe the formation of a distinct shell structure, in good agreement with theory.We report on the direct observation of the transition from a compressible superfluid to an incompressible Mott insulator by recording the in-trap density distribution of a Bosonic quantum gas in an optical lattice. Using spatially selective microwave transitions and spin-changing collisions, we are able to locally modify the spin state of the trapped quantum gas and record the spatial distribution of lattice sites with different filling factors. As the system evolves from a superfluid to a Mott insulator, we observe the formation of a distinct shell structure, in good agreement with theory.

arXiv:cond-mat/0606592Physical Review LettersAug 10, 2006203 citations

Characterizing the nature of superfluid to Mott-insulator transitions via microwave spectroscopy

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