Work

Coherent Processing of a Qubit Using One Squeezed State

Year: 2017
Type: article
Abstract: In a departure from most work in quantum information utilizing Gaussian states, we use a single such state to represent a qubit and model environmental noise with a class of quadratic dissipative equations. A benefit of this single Gaussian representation is that with one deconvolution, we can eliminate noise. In this deconvolution picture, a basis of squeezed states evolves to another basis of such states. One of the limitations of our approach is that noise is eliminated only at a privileged time. We suggest that this limitation may actually be used advantageously to send information securely: the privileged time is only known to the sender and the receiver, and any intruder accessing the information at any other time encounters noisy data.
Source: Entropy
Language: English
Open Access status: gold
Estimated APC paid: $3,137
OpenAlex ID: W2474749883
FWCI:
Cites: 37
Cited by: 3
Related to: 10