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06-05
2019
Topological triply-degenerate points in ultracold atoms and photonic hyperbolic metamaterials
Abstract: Topological states of matter provide a fertile ground for discovering new quasiparticles in condensed matter physics, such as Weyl and Dirac fermions, which were originally predicted in hig...
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05-16
2019
Long-Distance Entanglement based Quantum Key Distribution
Abstract: Among various implementations of QKD, the entanglement-based approach is especially promising for future applications, as it forms the basis of device-independent quantum secure cryptograph...
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04-22
2019
Quantum Many-Body Computation on a Small Quantum Computer
Abstract: What can we do on a small quantum computer with O(10) qubits? We propose a variational scheme to study ground state properties of quantum many-body systems on small scale near-term noisy q...
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04-01
2019
Raising optical Schrödinger's cat with a cavity QED system
Abstract: Engineering macroscopic quantum state of light is an important goal in quantum optics. However, generating such photonic states in a deterministic way turns out to be hard, as photon-photon...
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02-22
2019
Cryogenic Trapped Ion System for Large Scale Quantum Simulation
Abstract: Trapped ion systems are a leading platform for quantum simulation of spin models. Current experiments are limited to less than 55 ions due to collisions with background gas that destroy the...
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01-29
2019
Position and spin operators for Dirac particles
Abstract: A century ago, Dirac proposed his equation merging quantum mechanics with special relativity. During the last century, the Dirac equation played the key role for the predictions of antimatt...