Browsing NTNU Open by Author "Toniolo, Daniele"

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Phase transitions in low dimensional systems via spontaneous symmetry breaking and topology

Toniolo, Daniele (Doctoral thesis at NTNU;2015:271, Doctoral thesis, 2015)

In nature there exists a fundamental distinction among particles regarding their statistics. Let us consider an isolated systems of two particles: two bosons are allowed to stay in the same physical state while two fermions ...
Superfluidity breakdown and multiple roton gaps in spin-orbit-coupled Bose-Einstein condensates in an optical lattice

Toniolo, Daniele; Linder, Jacob (Journal article, 2014)

We investigate the superfluid phases of a Rashba spin-orbit-coupled Bose-Einstein condensate residing on a two-dimensional square optical lattice in the presence of an effective Zeeman field Ω. At a critical value Ω=Ωc, ...