AlbaNova Colloquium
Quantum jumps and open systems - from positive to negative probabilities and back
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Europe/Stockholm
Klein Auditorium
Klein Auditorium
Description
Quantum jumps can be used to describe the evolution of single quantum
systems as several experiments have demonstrated. Typically jumps
occur in open quantum systems, where the system under study is
interacting with its environment. One example is an atom coupled to
the electromagnetic modes of the universe. For structured reservoirs
short-time dynamics is non-Markovian, and in some cases the
identification of jump processes is hampered by the fact that jump
probabilities become time-dependent and can have negative values. I
shall review the experimental and theoretical concepts of quantum
jumps, and then I present a novel method for the treatment of
non-Markovian evolution as an ensemble of quantum jump histories.
Streaming video
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