Coherent Processing of a Qubit Using One Squeezed State

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 elimi...

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Main Author:	Allan Tameshtit
Format:	Article
Language:	English
Published:	MDPI AG 2017-11-01
Series:	Entropy
Subjects:	coherence qubit quantum noise squeezed state
Online Access:	https://www.mdpi.com/1099-4300/19/12/653

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spelling	doaj-16da8207e6ac4c14ac9eb6ebce2dcc812020-11-25T00:35:54ZengMDPI AGEntropy1099-43002017-11-01191265310.3390/e19120653e19120653Coherent Processing of a Qubit Using One Squeezed StateAllan Tameshtit0Independent Researcher, 35 Bowring Walk, Toronto, ON M3H-5Z8, CanadaIn 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.https://www.mdpi.com/1099-4300/19/12/653coherencequbitquantum noisesqueezed state
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Allan Tameshtit
spellingShingle	Allan Tameshtit Coherent Processing of a Qubit Using One Squeezed State Entropy coherence qubit quantum noise squeezed state
author_facet	Allan Tameshtit
author_sort	Allan Tameshtit
title	Coherent Processing of a Qubit Using One Squeezed State
title_short	Coherent Processing of a Qubit Using One Squeezed State
title_full	Coherent Processing of a Qubit Using One Squeezed State
title_fullStr	Coherent Processing of a Qubit Using One Squeezed State
title_full_unstemmed	Coherent Processing of a Qubit Using One Squeezed State
title_sort	coherent processing of a qubit using one squeezed state
publisher	MDPI AG
series	Entropy
issn	1099-4300
publishDate	2017-11-01
description	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.
topic	coherence qubit quantum noise squeezed state
url	https://www.mdpi.com/1099-4300/19/12/653
work_keys_str_mv	AT allantameshtit coherentprocessingofaqubitusingonesqueezedstate
_version_	1725307185076895744

Coherent Processing of a Qubit Using One Squeezed State

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