Quantum Logical States and Operators for Josephson-like Systems

Details Quantum Logical States and Operators for Josephson-like Systems Quantum Logical States and Operators for Josephson-like Systems

2005-02-21

arxiv.org/abs/cond-mat/0502503v2

J. Phys. A: Math. Gen. vol. 39 L111-L118 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages in RevTex. In press, Journal of Physics A/Letters

Scientific paper

10.1088/0305-4470/39/5/L01

We give a formal algebraic description of Josephson-type quantum dynamical systems, i.e., Hamiltonian systems with a cos theta-like potential term. The two-boson Heisenberg algebra plays for such systems the role that the h(1) algebra does for the harmonic oscillator. A single Josephson junction is selected as a representative of Josephson systems. We construct both logical states (codewords) and logical (gate) operators in the superconductive regime. The codewords are the even and odd coherent states of the two-boson algebra: they are shift-resistant and robust, due to squeezing. The logical operators acting on the qubit codewords are expressed in terms of operators in the enveloping of the two-boson algebra. Such a scheme appears to be relevant for quantum information applications.

Affiliated with

Also associated with

No associations

Rating

Quantum Logical States and Operators for Josephson-like Systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum Logical States and Operators for Josephson-like Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum Logical States and Operators for Josephson-like Systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-197395