Flow equation approach to diagonal representation of an unbounded Hamiltonian with complex eigenvalues

Abstract

The flow equation approach investigated by Wegner et al. is applied to an unbounded Hamiltonian system with a generalization. We show that a well-known quantized complex energy eigenvalues which is related to decay widths can be given with this approach.

Revtex, 4 pages, 2 figures. To appear in Physics Letters A

References in corpus (2)

• Flow equations for band--matrices
• Operator Methods of the Parabolic Potential Barrier

Cited by in corpus (2)

• Flow Equations and Normal Ordering. A Survey
• The Quartic Oscillator: a Non-Perturbative Study by Continuous Unitary Transformations