Stochastic Qubits

A new concept of qubits is given by considering entanglement of ordinary quibits with quantum measuring devices (micro-detectors). They are called stochastic qubits since they are generalized coherent states used in the stochastic (phase space) quantum theory. Entanglement is realized through the co...

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Bibliographic Details
Published in:arXiv.org 2015-02
Main Authors: Smida, Abdallah, Hachemane, Mahmoud, Amel-Hiba Hamici
Format: Article
Language:English
Subjects:
Measuring instruments
Quantum entanglement
Quantum theory
Qubits (quantum computing)
Teleportation
Online Access:Get full text
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Summary:A new concept of qubits is given by considering entanglement of ordinary quibits with quantum measuring devices (micro-detectors). They are called stochastic qubits since they are generalized coherent states used in the stochastic (phase space) quantum theory. Entanglement is realized through the coupling of angular momenta \(l\) and \(\sigma\), where the micro-detector has \(l=0,1\) and the qubit spin is \(\sigma=1/2\). In both cases, the stochastic qubit has total spin \(J=1/2\) and is entangled only when \(l=1\). In this case, Stochastic Bell states have been defined and teleportation has been studied. They resemble conventional ones. When the micro-detecors have only two states, Stochastic qudits have rather been used. Here, Stochastic Bell states have also been defined and teleportation is possible for special states only. In the last step of this teleportation, Bob will have to transform the qubit only, or the micro-detector only, to recover Alice state.
ISSN:2331-8422