Evolution of Level Sets in Hamilton Parameter Space

Details Evolution of Level Sets in Hamilton Parameter Space Evolution of Level Sets in Hamilton Parameter Space

2004-11-20

arxiv.org/abs/quant-ph/0411155v1

Physics

Quantum Physics

Scientific paper

We develop a formalism to study the use of Level Set Method (LSM) in the investigation of evolution of observables in terms of parameters of the Hamiltonian, both of the system itself and the control part. A simple example with an analytic solution available perturbatively is examined. We show that B splines can quite accurately and smoothly interpolate surfaces corresponding to constant expectation value of observables which form the level sets as projections on a finite mesh of data. Lastly we make a brief priliminary scrutiny of teh possibility of using temperature as a relevant parameter in ensembles of quantum systems.

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