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- Tyndall National InstituteIE88 papers
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15 papers · 2 filters
Tunneling, self-trapping and manipulation of higher modes of a BEC in a double well
J. Gillet, M. A. Garcia-March, Th. Busch +1
We consider an atomic Bose-Einstein condensate trapped in a symmetric one-dimensional double well potential in the four-mode approximation and show that the semiclassical dynamics…
Inhibiting unwanted transitions in population transfer in two- and three-level quantum systems
Anthony Kiely, Andreas Ruschhaupt
We examine the stability of population transfer in two- and three-level systems against unwanted additional transitions. This population inversion is achieved by using recently pro…
Decoherence in a fermion environment: Non-Markovianity and Orthogonality Catastrophe
F. Plastina, A. Sindona, J. Goold +2
We analyze the non-Markovian character of the dynamics of an open two-level atom interacting with a gas of ultra-cold fermions. In particular, we discuss the connection between the…
Quantum state transfer in the presence of non homogeneous external potentials
Gian Luca Giorgi, Thomas Busch
Heisenberg-type spin models in the limit of a low number of excitations are useful tools to study basic mechanisms in strongly correlated and magnetic systems. Many of these mechan…
Coherent transport by adiabatic passage on atom chips
T. Morgan, L. J. O'Riordan, N. Crowley +2
Adiabatic techniques offer some of the most promising tools to achieve high-fidelity control of the centre-of-mass degree of freedom of single atoms. As their main requirement is t…
Criticality, factorization and long-range correlations in the anisotropic XY-model
Steve Campbell, Jonathan Richens, Nicola Lo Gullo +1
We study the long-range quantum correlations in the anisotropic XY-model. By first examining the thermodynamic limit we show that employing the quantum discord as a figure of merit…