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Chapter
Creating Entangled States between SQUID Rings and Electromagnetic Fields
The problem of entangling a SQUID ring inductively coupled to an electromagnetic field mode is considered here. It is demonstrated by solving the time dependent Schrödinger equation that a system with varying ...
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Chapter
A SQUID Ring-Resonator Finate State Machine
In this paper we consider a system comprising a highly hysteretic, single Josephson weak link SQUID ring (i.e. where 2πL s I c/Φ 0 ≫ 1 for a SQUID r...
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Chapter
Frequency Down Conversion and Entanglement between Electromagnetic Field Modes via a Mesoscopic SQUID Ring
In this chapter, and by analogy with Quantum Optics, the properties of SQUID rings (here, a Josephson weak link enclosed by a thick superconducting ring) in the quantum regime are discussed. In particular, the...
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Chapter
Squid Rings As Devices for Controlling Quantum Entanglement and Information
We model a SQUID ring coupled to one or two electromagnetic field oscillator modes, each component being treated quantum mechanically. We show that the external flux on the SQUID ring can be used to control th...
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Chapter
Manipulating Quantum Transitions in A Persistent Current Qubit
This paper discusses two methods for generating quantum transitions between energy eigenstates in a model persistent current qubit. The alternatives are compared and their advantages and disadvantages are cons...