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04-15
2015
On zero-error communication via quantum channels in the presence of noiseless fe
内容： We initiate the study of zero-error communication via quantum channels assisted by noiseless feedback link of unlimited quantum capacity, generalizing Shannon's zero-error communication theory ...
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12-04
2014
Quantum Journal Club：Evidence for quantum annealing with more than one hundred q
内容： Evidence for quantum annealing with more than one hundred qubits Quantum technology is maturing to the point where quantum devices, such as quantum communication systems, quantum random number ...
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12-25
2014
Quantum Journal Club: Detection and Control of Individual Nuclear Spins Using a
内容： We experimentally isolate, characterize, and coherently control up to six individual nuclear spins that are weakly coupled to an electron spin in diamond. Our method employs multipulse sequence...
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12-11
2014
Quantum Journal Club: Laser cooling and real-time measurement of the nuclear spi
内容： Control over quantum dynamics of open systems is one of the central challenges in quantum science and engineering. Coherent optical techniques, such as coherent population trapping involving da...
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11-13
2014
Quantum Journal Club: Practical quantumkey distribution protocol without monitor
内容： Quantum cryptography1, 2, 3, 4, 5, 6, 7, 8 exploits the fundamental laws of quantum mechanics to provide a secure way to exchange private information. Such an exchange requires a common random ...
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10-31
2014
QUIC talk: Permutation-invariant quantum codes with Heisenberg ferromagnets
内容： A quantum code is a subspace of a Hilbert space of a physical system chosen to be correctable against a given class of errors, where information can be encoded. Ideally, the quantum code lies w...