Dynamics of encrypted information in the presence of imperfect operations

Abstract

The original dense coding protocol is achieved via quantum channel generated between a single Cooper pair and a cavity. The dynamics of the coded and decoded information are investigated for different values of the channel's parameters. The efficiency of this channel for coding and decoding information depends on the initial state settings of the Cooper pair. It is shown that, these information increase as the detuning parameter increases or the number of photons inside the cavity decreases. The coded and decoded information increase as the ratio of the capacities between the box and gate decreases. In the presence of imperfect operation, the sensitivity of the information to the phase error is much larger than the bit flip error.

References in corpus (5)

• Quantum information processing with circuit quantum electrodynamics
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• The quantum computational speed of a single Cooper Pair box
• Quantum dense coding over Bloch channels
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Cited by in corpus (6)

• Quantum coding in non-inertial frames
• Skew Information for a single Cooper Pair Box interacts with a single cavity Mode
• Teleportation with Multiple Accelerated Partners
• Optimal quantum precision in noise estimation: Is entanglement necessary?
• Fisher information of accelerated two-qubit system in the presence of the color and white noise channels
• Dynamics of multi-qubit systems in noisy environment