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03-12
2013
Reliable quantum cloning at the Heisenberg limit
内容： 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 probabilist...
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03-07
2013
Journal Club
内容： Speaker: Shuo-ming An (安硕明) Paper: Undoing a Quantum Measurement Authors: Philipp Schindler, Thomas Monz, Daniel Nigg, Julio T. Barreiro, Esteban A. Martinez, Matthias F. Brandl, Michael C...
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03-05
2013
Open mysteries in quantum information, from Quantum Discord to the Building the
内容： Nobel Laureate Richard Feynman once proclaimed that 'If you think you understand quantum mechanics, you don't understand quantum mechanics." Decades later, the science of quantum information co...
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03-04
2013
Universal Subspaces for Local Unitary Groups of Fermionic Systems
For the representation $ ho$ of the local unitary (LU) group $G$ on the $N$-fermion Hilbert space $\mathcal{V}=\wedge^N V$ with $M$-dimensional single particle space $V$, a universal subspace $\mathca...
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01-18
2013
Towards Scalable Quantum Computing Architecture Based on Polarization of Spin En
内容： Nuclear Magnetic Resonance (NMR)-based quantum computing devices have been successful in controlling small numbers of spin qubits. However, it is extremely challenging to build a scalable NMR...
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01-17
2013
Fundamental limitations for quantum and nano thermodynamics
内容： The relationship between thermodynamics and statistical physics is valid in the thermodynamic limit when the number of particles becomes very large. Here we study thermodynamics in the opposite...