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Tunneling Dynamics in Open Ultracold Bosonic Systems - Numerically Exact Dynamics – Analytical Models – Control Schemes (Paperback, Softcover reprint of the original 1st ed. 2015)
Loot Price: R1,876
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Tunneling Dynamics in Open Ultracold Bosonic Systems - Numerically Exact Dynamics – Analytical Models – Control Schemes (Paperback, Softcover reprint of the original 1st ed. 2015)
Series: Springer Theses
Expected to ship within 10 - 15 working days
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This thesis addresses the intriguing topic of the quantum
tunnelling of many-body systems such as Bose-Einstein condensates.
Despite the enormous amount of work on the tunneling of a single
particle through a barrier, we know very little about how a
system made of several or of many particles tunnels through a
barrier to open space. The present work
uses numerically exact solutions of the time-dependent
many-boson Schrödinger equation to explore the rich physics of the
tunneling to open space process in ultracold bosonic particles that
are initially prepared as a Bose-Einstein condensate and
subsequently allowed to tunnel through a barrier to open space. The
many-body process is built up from concurrently occurring
single particle processes that are characterized by different
momenta. These momenta correspond to the chemical potentials of
systems with decreasing particle number. The many-boson process
exhibits exciting collective phenomena: the escaping
particles fragment and lose their coherence with the source
and among each other, whilst correlations build
up within the system. The detailed understanding of the
many-body process is used to devise and test a scheme to control
the final state, momentum distributions and even the correlation
dynamics of the tunneling process.
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