Time-resolved measurement of Landau--Zener tunneling in different bases
arXiv:1007.1326 · doi:10.1103/PhysRevA.82.013633
Abstract
A comprehensive study of the tunneling dynamics of a Bose--Einstein condensate in a tilted periodic potential is presented. We report numerical and experimental results on time-resolved measurements of the Landau--Zener tunneling of ultracold atoms introduced by the tilt, which experimentally is realized by accelerating the lattice. The use of different protocols enables us to access the tunneling probability, numerically as well as experimentally, in two different bases, namely, the adiabatic basis and the diabatic basis. The adiabatic basis corresponds to the eigenstates of the lattice, and the diabatic one to the free-particle momentum eigenstates. Our numerical and experimental results are compared with existing two-state Landau--Zener models.
References in corpus (4)
- Many-Body Physics with Ultracold Gases
- Nonlinearity induced destruction of resonant tunneling in the Wannier-Stark problem
- Resonant tunneling of Bose-Einstein condensates in optical lattices
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Cited by in corpus (14)
- Nonadiabatic Landau-Zener-Stückelberg-Majorana transitions, dynamics, and interference
- Super-Adiabatic Particle Number in Schwinger and de Sitter Particle Production
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- Superadiabatic driving of a three-level quantum system
- Transport of ultracold atoms in superpositions of S- and D-band states in a moving optical lattice
- Exact numerical methods for a many-body Wannier Stark system
- Irregular Bloch Zener oscillations in two-dimensional flat-band Dirac materials
- Engineering of Landau-Zener tunneling
- Phase diffusion and fluctuations in a dissipative Bose-Josephson junction
- Nonadiabatic quantum chaos in atom optics
- Tunable nonlinear Landau-Zener tunnelings in a spin-orbit-coupled spinor Bose-Einstein condensate
- Time bound of atomic adiabatic evolution in the accelerated optical lattice
- The time-domain Landau-Zener-Stuckelberg-Majorana interference in optical lattice clock
- Bloch-Landau-Zener Oscillations in Moiré Lattices