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5 papers · 2 filters
Stochastic limit approximation for rapidly decaying systems
Gen Kimura, Kazuya Yuasa, Kentaro Imafuku
The stochastic limit approximation method for ``rapid'' decay is presented, where the damping rate γis comparable to the system frequency Ω, i.e., γ\sim Ω, whereas the usual stocha…
From the quantum Zeno to the inverse quantum Zeno effect
P. Facchi, H. Nakazato, S. Pascazio
The temporal evolution of an unstable quantum mechanical system undergoing repeated measurements is investigated. In general, by changing the time interval between successive measu…
A generalized Weyl relation approach to the time operator and its connection to the survival probability
Manabu Miyamoto
The time operator, an operator which satisfies the canonical commutation relation with the Hamiltonian, is investigated, on the basis of a certain algebraic relation for a pair of…
Estimation of Buttiker-Landauer traversal time based on the visibility of transmission current
Koh'ichiro Hara, Ichiro Ohba
We present a proposal for the estimation of Büttiker-Landauer traversal time based on the visibility of transmission current. We analyze the tunneling phenomena with a time-depende…
Stability and instability in parametric resonance and quantum Zeno effect
P. Facchi, H. Nakazato, S. Pascazio +2
A quantum mechanical version of a classical inverted pendulum is analyzed. The stabilization of the classical motion is reflected in the bounded evolution of the quantum mechanical…