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Transferring orbital and spin angular momenta of light to atoms
Light beams carrying orbital angular momentum (OAM), such as Laguerre–Gaussian (LG) beams, give rise to the violation of the standard dipolar selection rules during interaction with matter, yielding,…
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Applied Bohmian mechanics
Abstract Bohmian mechanics provides an explanation of quantum phenomena in terms of point-like particles guided by wave functions. This review focuses on the use of nonrelativistic Bohmian mechanics…
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Spatial adiabatic passage: a review of recent progress
TLDR
Recent progress on developing techniques for the preparation of spatial states through adiabatic passage is reviewed, particularly focusing on three state systems.
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Atomtronics with holes: Coherent transport of an empty site in a triple-well potential
We investigate arrays of three traps with two fermionic or bosonic atoms. The tunneling interaction between neighboring sites is used to prepare multisite dark states for the empty site (i.e., the…
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Need for relativistic corrections in the analysis of spatial adiabatic passage of matter waves
Departament d’Enginyeria Electronica, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Spain(Dated: July 22, 2011)We discuss and solve the transport without transit quantum paradox recently…
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Adiabatic theorem revisited: The unexpectedly good performance of adiabatic passage
Adiabatic passage employs a slowly varying time-dependent Hamiltonian to control the evolution of a quantum system along the Hamiltonian eigenstates. For processes of finite duration, the exact time…
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Spatial non-adiabatic passage using geometric phases
Quantum technologies based on adiabatic techniques can be highly effective, but often at the cost of being very slow. Here we introduce a set of experimentally realistic, non-adiabatic protocols for…
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Shaken not stirred: creating exotic angular momentum states by shaking an optical lattice
We propose a method to create higher orbital states of ultracold atoms in the Mott regime of an optical lattice. This is done by periodically modulating the position of the trap minima (known as…
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Conditions for the classicality of the center of mass of many-particle quantum states
We discuss the conditions for the classicality of quantum states with a very large number of identical particles. By defining the center of mass from a large set of Bohmian particles, we show that it…
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Speeding up the spatial adiabatic passage of matter waves in optical microtraps by optimal control
TLDR
The ultimate limits of the optimal control in speeding up the transport process in a triple well configuration for both a single atomic wave packet and a Bose-Einstein condensate are investigated within a regime of experimental parameters achievable with current optical technology.
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