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Excitation energy after a smooth quench in a Luttinger liquid
Jacek Dziarmaga, Marek Tylutki
Low energy physics of quasi-one-dimensional ultracold atomic gases is often described by a gapless Luttinger liquid (LL). It is nowadays routine to manipulate these systems by chan…
Topological Schrödinger cats: Non-local quantum superpositions of topological defects
Jacek Dziarmaga, Wojciech H. Zurek, Michael Zwolak
Topological defects (such as monopoles, vortex lines, or domain walls) mark locations where disparate choices of a broken symmetry vacuum elsewhere in the system lead to irreconcil…
A ring of BEC pools as a trap for persistent flow
Jacek Dziarmaga, Marek Tylutki, Wojciech H. Zurek
Mott insulator - superfluid transition in a periodic lattice of Josephson junctions can be driven by tunneling rate increase. Resulting winding numbers of the condensate wavefu…