Frictionless quantum quenches in ultracold gases: A quantum-dynamical microscope
Abstract
In this Rapid Communication, a method is proposed to spatially scale up a trapped ultracold gas while conserving the quantum correlations of the initial many-body state. For systems supporting self-similar dynamics, this is achieved by implementing an engineered finite-time quench of the harmonic trap, which induces a frictionless expansion of the gas and acts as a quantum dynamical microscope.
- Publication:
-
Physical Review A
- Pub Date:
- September 2011
- DOI:
- 10.1103/PhysRevA.84.031606
- arXiv:
- arXiv:1103.0714
- Bibcode:
- 2011PhRvA..84c1606D
- Keywords:
-
- 03.75.Kk;
- 67.85.-d;
- Dynamic properties of condensates;
- collective and hydrodynamic excitations superfluid flow;
- Ultracold gases trapped gases;
- Condensed Matter - Quantum Gases;
- Physics - General Physics;
- Quantum Physics
- E-Print:
- 5 pages, 3 figures