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9 papers · 2 filters
Spanning the full Poincaré sphere with polariton Rabi oscillations
D. Colas, L. Dominici, S. Donati +11
We propose theoretically and demonstrate experimentally a generation of light pulses whose polarization varies temporally to cover selected areas of the Poincaré sphere with tunabl…
Renormalization group approach to the Fröhlich polaron model: application to impurity-BEC problem
F. Grusdt, Y. E. Shchadilova, A. N. Rubtsov +1
We develop a renormalization group approach for analyzing Fröhlich polarons and apply it to a problem of impurity atoms immersed in a Bose-Einstein condensate of ultra cold atoms.…
Polaronic mass renormalization of impurities in BEC: correlated Gaussian wavefunction approach
Yulia E. Shchadilova, Fabian Grusdt, Alexey N. Rubtsov +1
We propose a class of variational Gaussian wavefunctions to describe Fröhlich polarons at finite momenta. Our wavefunctions give polaron energies that are in excellent agreement wi…
Stable dilute supersolid of two-dimensional dipolar bosons
Zhen-Kai Lu, Yun Li, D. S. Petrov +1
We consider two-dimensional bosonic dipoles oriented perpendicularly to the plane. On top of the usual two-body contact and long-range dipolar interactions we add a contact three-b…
Two-dimensional Bose gas of tilted dipoles: roton instability and condensate depletion
A. K. Fedorov, I. L. Kurbakov, Y. E. Shchadilova +1
We predict the effect of the roton instability for a two-dimensional weakly interacting gas of tilted dipoles in a single homogeneous quantum layer. Being typical for strongly corr…
Reply to "Comment on 'Kinetic theory for a mobile impurity in a degenerate Tonks-Girardeau gas'"
O. Gamayun, O. Lychkovskiy, V. Cheianov
In our recent paper [Phys. Rev. E 90, 032132 (2014)] we have studied the dynamics of a mobile impurity particle weakly interacting with the Tonks-Girardeau gas and pulled by a smal…