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- Publications
- Influence
Exploring topological phases with quantum walks
- T. Kitagawa, M. Rudner, E. Berg, E. Demler
- Physics
- 8 March 2010
The quantum walk was originally proposed as a quantum-mechanical analog of the classical random walk, and has since become a powerful tool in quantum information science. In this paper, we show that… Expand
Controlling spin exchange interactions of ultracold atoms in optical lattices.
We describe a general technique that allows one to induce and control strong interaction between spin states of neighboring atoms in an optical lattice. We show that the properties of spin exchange… Expand
Robust optical delay lines with topological protection
- Mohammad Hafezi, E. Demler, M. Lukin, J. Taylor
- Physics
- 16 February 2011
The robustness of edge states against external influence is a phenomenon that has been successfully applied to electron transport. A study now predicts that the same concept can also lead to improved… Expand
Direct measurement of the Zak phase in topological Bloch bands
- M. Atala, M. Aidelsburger, +4 authors I. Bloch
- Physics
- 3 December 2012
Geometric phases that characterize the topological properties of Bloch bands play a fundamental role in the band theory of solids. Here we report on the measurement of the geometric phase acquired by… Expand
Two-orbital SU(N) magnetism with ultracold alkaline-earth atoms
- A. Gorshkov, M. Hermele, +7 authors A. M. Rey
- Physics
- 18 May 2009
Fermionic alkaline-earth atoms have unique properties that make them attractive candidates for the realization of atomic clocks and degenerate quantum gases. At the same time, they are attracting… Expand
Topological Characterization of Periodically-Driven Quantum Systems
- T. Kitagawa, E. Berg, M. Rudner, E. Demler
- Physics
- 29 October 2010
Topological properties of physical systems can lead to robust behaviors that are insensitive to microscopic details. Such topologically robust phenomena are not limited to static systems but can also… Expand
Relaxation and Prethermalization in an Isolated Quantum System
- M. Gring, M. Kuhnert, +7 authors J. Schmiedmayer
- Physics, Medicine
- Science
- 30 November 2011
Prethermalization When a physical system is subjected to a rapid change of conditions (for example, a gas of atoms is allowed to occupy a volume twice the size of the original container), it quickly… Expand
Fractional quantum Hall states of atoms in optical lattices.
- A. Sørensen, E. Demler, M. Lukin
- Physics, Medicine
- Physical review letters
- 5 May 2004
We describe a method to create fractional quantum Hall states of atoms confined in optical lattices. We show that the dynamics of the atoms in the lattice is analogous to the motion of a charged… Expand
Transport properties of nonequilibrium systems under the application of light: Photoinduced quantum Hall insulators without Landau levels
- T. Kitagawa, Takashi Oka, A. Brataas, L. Fu, E. Demler
- Physics
- 24 April 2011
In this paper, we study transport properties of non-equilibrium systems under the application of light in many-terminal measurements, using the Floquet picture. We propose and demonstrate that the… Expand
Observation of topologically protected bound states in photonic quantum walks
- T. Kitagawa, M. Broome, +6 authors A. White
- Medicine, Physics
- Conference on Lasers and Electro-Optics Europe…
- 6 June 2012
Topological phenomena in physical systems are a direct consequence of the topology of the underlying wave-functions and are robust against perturbations; for example, the Hall conductance induced by… Expand