6533b820fe1ef96bd1279c28
RESEARCH PRODUCT
ERGODICITY IN RANDOMLY COLLIDING QUBITS
G. Massimo PalmaGiuliano BenentiGiuliano BenentiG. Gennarosubject
PhysicsPhysics and Astronomy (miscellaneous)Thermodynamic equilibriumErgodicityQuantum PhysicsState (functional analysis)Quantum entanglementComputer Science::Emerging TechnologiesirreversibilityQubitQuantum mechanicsErgodic theoryW stateRandom collisionSignature (topology)entanglementdescription
The dynamics of a single qubit randomly colliding with an environment consisting of just two qubits is discussed. It is shown that the system reaches an equilibrium state which coincides with a pure random state of three qubits. Furthermore the time average and the ensemble averages of the quantities used to characterize the approach to equilibrium (purity and tangles) coincide, a signature of ergodic behavior.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-01-01 |