Complementarity and the algebraic structure of 4-level quantum systems

Abstract

The history of complementary observables and mutual unbiased bases is reviewed. A characterization is given in terms of conditional entropy of subalgebras. The concept of complementarity is extended to non-commutative subalgebras. Complementary decompositions of a 4-level quantum system are described and a characterization of the Bell basis is obtained.

19 pages

References in corpus (5)

• Complementarity in quantum systems
• Complementary reductions for two qubits
• Point Estimation of States of Finite Quantum Systems
• State tomography for two qubits using reduced densities
• Complementarity and the algebraic structure of 4-level quantum systems

Cited by in corpus (1)

• Complementarity and the algebraic structure of 4-level quantum systems