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Quantum-jump analysis of frequency up-conversion amplification without inversion in a four-level scheme
Juan Luis Rubio, Jordi Mompart, Verònica Ahufinger
In this work, we use the quantum-jump approach to study light-matter interactions in a four-level scheme giving rise to frequency up-conversion amplification without inversion (AWI…
Spatially strongly confined atomic excitation via two dimensional stimulated Raman adiabatic passage
Hamid R. Hamedi, Giedrius Zlabys, Veronica Ahufinger +3
We consider a method of sub-wavelength superlocalization and patterning of atomic matter waves via a two dimensional stimulated Raman adiabatic passage (2D STIRAP) process. An atom…
Orbital angular momentum dynamics of Bose-Einstein condensates trapped in two stacked rings
Eloi Nicolau, Jordi Mompart, Bruno Juliá-Díaz +1
We investigate the stability and dynamics of the orbital angular momentum modes of a repulsive Bose-Einstein condensate trapped in two tunnel-coupled rings in a stack configuration…
Quantum magnetism with ultracold bosons carrying orbital angular momentum
G. Pelegrí, J. Mompart, V. Ahufinger +1
We show how strongly correlated ultracold bosonic atoms loaded in specific orbital angular momentum states of arrays of cylindrically symmetric potentials can realize a variety of…
Optimal conditions for spatial adiabatic passage of a Bose-Einstein condensate
Juan Luis Rubio, Verònica Ahufinger, Thomas Busch +1
We investigate spatial adiabatic passage of a Bose-Einstein condensate in a triple well potential within the three-mode approximation. By rewriting the dynamics in the so-called ti…
Quantum sensing using imbalanced counter-rotating Bose--Einstein condensate modes
G. Pelegrí, J. Mompart, V. Ahufinger
A quantum device for measuring two-body interactions, scalar magnetic fields and rotations is proposed using a Bose--Einstein condensate (BEC) in a ring trap. We consider an imbala…