587 search results - page 25 / 118 » Quantum computation and quantum information |
GBRPR
2005
Springer
14 years 3 months ago
2005
Springer
In this paper we explore how a spectral technique suggested by quantum walks can be used to distinguish non-isomorphic cospectral graphs. Reviewing ideas from the field of quantum...
EUROCRYPT
2005
Springer
14 years 3 months ago
2005
Springer
We introduce a computational problem of distinguishing between two specific quantum states as a new cryptographic problem to design a quantum cryptographic scheme that is “secu...
JACM
2006
13 years 10 months ago
2006
We revisit the problem of conveying classical messages by transmitting quantum states, and derive new, optimal bounds on the number of quantum bits required for this task. Much of...
TC
2010
13 years 8 months ago
2010
—In this paper, we present a quantum multicasting network, called a generalized quantum connector (n-GQC), which can be used to multicast quantum information from n inputs to n o...
CORR
2011
Springer
13 years 1 months ago
2011
Springer
This paper provides a succinct proof of a 1973 theorem of Lieb that establishes the concavity of a certain trace function. The development relies on a deep result from quantum info...