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07-21
2011
Fractional quantum Hall effect in the absence of Landau levels
Abstract: It has been well-known that topological phenomena with fractional excitations, i.e., the fractional quantum Hall effect (FQHE) will emerge when electrons move in Landau levels. In this talk...
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07-19
2011
Unconventional Bose-Einstein condensation beyond the no-node paradigm
Abstract: Feynman's "no-node" theorem states that the conventional many-body ground state wavefunctions of bosons in the coordinate representation are positive de nite. This implies that time-reversa...
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07-14
2011
Quantum computing with spins and photons
Abstract: In this talk, I will describe several experiments demonstrating simple quantum computation primitives using multi-photon entanglement and semiconductor quantum dot spin. I will start with a...
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07-12
2011
Interaction induced novel condensates in a double-well optical lattice
Abstract: It has been a great success to use cold atoms in optical lattices to simulate various theoretical models in condensed matter physics in the last decade. On the other hand, current studies h...
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06-30
2011
Search for Majorana Fermions in p-Type Semiconductor Thin Films and Nanowires
Abstract: Majorana fermions were envisioned by E. Majorana in 1935 to describe neutrinos. Majorana fermions are intriguing because they can be construed as their own anti-particles and follow non-Abe...
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06-28
2011
Unconventional Phases and Phases Transitions in Condensed Matter Theory
Abstract: We will start with a review of phases and phases transitions beyond the classic Landau's paradigm. Then we will study the phase diagram of the Hubbard model on the honeycomb lattice. Based ...