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Oxford Quantum Talks Archive

Kinematic Noise

Marco Lanzagorta, ITT Corporation
Quantum Physics and Logic 2010, May 2010, University of Oxford

In this paper we introduce the notion of kinematic noise for quantum communications. That is, the noise introduced by the relative state of motion of the transmitter (Alice) and the receiver (Bob). We show that, as seen by inertial observers, relative motion introduces rotations in the quantum state used to represent a qubit. Depending on the relative motion between Alice and Bob, kinematic noise will tend to decrement the capacity of a simple send/receive quantum communication channel. We also show that there exists a privileged basis to encode classical information that is resilient to the effects of kinematic noise. Furthermore, even though it can be proved that kinematic noise does not affect the degree of entanglement, it does affect the capacity of the teleportation channel. However, in this case, there appears to be no privileged basis or entangled state that helps to shield the effects of kinematic noise.

[video] [streaming video]