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03-10
2017
Erasing memory – Protecting Quantum Coherence and Entanglement
Abstract: In a quantum measurement, an operator projects the system into one of its eigenstates with a specific eigenvalue as the readout. Once the measurement is done, the unknown initial state of t...
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12-20
2012
Exploring Synthetic Quantum Materials using Ultracold Atoms: Cold-atom based rea
Abstract: Quantum materials exhibiting collective and emergent phenomena are of central interest in modern quantum and material science. Ultracold atoms in optical lattices provide an ideal test bed ...
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12-29
2011
Experimental demonstration of quantum gain in a zero-sum game
Abstract: We propose and experimentally demonstrate a zero-sum game which is in a fair Nash equilibrium for classical players, but a quantum player can always win using an appropriate strategy. The g...
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06-05
2015
Quantum Journal Club: Long Lifetime and High-Fidelity Quantum Memory of Photonic
Abstract: A central aim of quantum information processing is the efficient entanglement of multiple stationary quantum memories via photons. Among solid-state systems, the nitrogen-vacancy centre in ...
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01-04
2019
Variational quantum simulation
Abstract: The variational method is a versatile tool for classical simulation of a variety of quantum systems. Great efforts have recently been devoted to its extension to quantum computing for effic...
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04-06
2017
Quantum Journal Club: Efficient Electrical Spin Readout of NV− Centers in Diamond
Abstract: Using pulsed photoionization the coherent spin manipulation and echo formation of ensembles of NV−centers in diamond are detected electrically, realizing contrasts of up to 17%. The underl...