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03-12
2013
Reliable quantum cloning at the Heisenberg limit
Abstract: No process in nature can perfectly copy an arbitrary quantum state. But is it possible to engineer processes that replicate quantum states with vanishingly small error? We devised a probabi...
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04-06
2017
Quantum Journal Club: Dielectric surface loss in superconducting resonators with flux-trapping holes
Abstract: Surface distributions of two level system (TLS) defects and magnetic vortices are limiting dissipation sources in superconducting quantum circuits. Arrays of flux-trapping holes are commonl...
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05-29
2015
Quantum Journal Club: Long Lifetime and High-Fidelity Quantum Memory of Photoni
Abstract: Long-lived and high-fidelity memory for a photonic polarization qubit (PPQ) is crucial for constructing quantum networks. We present a millisecond storage system based on electromagneticall...
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09-25
2014
Quantum Journal Club: Quantum computations on a topologically encoded qubit
Abstract: The construction of a quantum computer remains a fundamental scientific and technological challenge because of the influence of unavoidable noise. Quantum states and operations can be prote...
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10-27
2016
Critical thermalization of a disordered dipolar spin system in diamond
Abstract: Statistical mechanics underlies our understanding of macroscopic quantum systems. It is based on the assumption that out-of-equilibrium systems rapidly approach their equilibrium states, fo...
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12-29
2016
Quantum Journal Club: Improved superconducting qubit coherence with high-temperature substrate annealing
Abstract: We assess independently the impact of high-temperature substrate annealing and metal deposition conditions on the coherence of transmon qubits in the standard 2D circuit-QED architecture. W...