Project supported by the National Natural Science Foundation of China (Grant No. 60972071);the Natural Science Foundation of Zhejiang Province, China(Grant Nos. Y6100421 and LQ12F02012)
A quantum steganography protocol with a large payload is proposed based on the dense coding and the entanglement swapping of the Greenberger-Horne-Zeilinger (GHZ) states. Its super quantum channel is formed by build...
Project supported by the National Natural Science Foundation of China (Grant No. 60972071);the Natural Science Foundation of Zhejiang Province, China(Grant Nos. LQ12F02012 and Y6100421)
A large payload quantum steganography protocol based on cavity quantum electrodynamics (QED) is presented in this paper, which effectively uses the evolutionary law of atoms in cavity QED. The protocol builds up a h...
Project supported by the National Natural Science Foundation of China (Grant No. 60972071);the Natural Science Foundation of Zhejiang Province, China(Grant Nos. Y6100421 and LQ12F02012);the Zhejiang Province Science and Technology Project, China (Grant No. 2009C31060)
We study the performances of quantum channel adaptive [4,1] code transmitting in a joint amplitude damping and dephasing channel, the [6,2] code transmitting in an amplitude damping channel by combining the encoding, ...
Project supported by the National Natural Science Foundation of China (Grant No. 60972071);Science and Technology Program of Zhejiang Province,China (Grant No. 2009C31060)
In quantum information theory, yon Neumann entropy plays an important role; it is related to quantum channel capacities. Only for a few states can one obtain their entropies. In a continuous variable system, numeric e...