Interaction-free evolving states of a bipartite system
arXiv:1402.6448 · doi:10.1103/PhysRevA.89.062104
Abstract
We show that two interacting physical systems may admit entangled pure or non separable mixed states evolving in time as if the mutual interaction hamiltonian were absent. In this paper we define these states Interaction Free Evolving (IFE) states and characterize their existence for a generic binary system described by a time independent Hamiltonian. A comparison between IFE subspace and the decoherence free subspace is reported. The set of all pure IFE states is explicitly constructed for a non homogeneous spin star system model.
submitted to Phys. Rev. A
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Cited by in corpus (5)
- Unitarity, Feedback, Interactions -- Dynamics Emergent from Repeated Measurements
- Time evolution of a pair of distinguishable interacting spins subjected to controllable and noisy magnetic fields
- Interaction-free evolution in the presence of time-dependent Hamiltonians
- Generalized Interaction-Free Evolutions
- Hilbert space partitioning for non-Hermitian Hamiltonians: From off-resonance to Zeno subspaces