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19942026
most citedQuantum phases in an optical lattice

528 citations · 5k across the 129 of their papers we have counts for

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cond-mat.quant-gas2026

Correlated phases of moat-band excitons in two dimensions

L. Maisel Licerán, S. H. Boeve, H. T. C. Stoof

We study dilute two-dimensional systems of interacting excitons with a moat dispersion, whose ground-state manifold consists of a set of discrete or continuously degenerate energy…

cond-mat.quant-gas2021

Dynamics of spontaneous symmetry breaking in a space-time crystal

J. N. Stehouwer, J. Smits, P. van der Straten +1

We present the theory of spontaneous symmetry breaking (SSB) of discrete time translations as recently realized in the space-time crystals of an atomic Bose-Einstein condensate. Th…

cond-mat.quant-gas2020★ 11 cited

On the long-term stability of space-time crystals

J. Smits, H. T. C. Stoof, P. van der Straten

We investigate a space-time crystal in a superfluid Bose gas. Using a well-controlled periodic drive we excite only one crystalline mode in the system, which can be accurately mode…

cond-mat.quant-gas2018★ 25 cited

Dynamics of a Space-Time Crystal in an Atomic Bose-Einstein Condensate

Lei Liao, Jasper Smits, Peter van der Straten +1

A space-time crystal has recently been observed in a superfluid Bose gas. Here we construct a variational model that allows us to describe from first principles the coupling betwee…

cond-mat.quant-gas2018★ 3 cited

Nonrelativistic fermions with holographic interactions and the unitary Fermi gas

N. W. M. Plantz, H. T. C. Stoof

We present an alternative way of computing nonrelativistic single-particle spectra from holography. To this end, we introduce a mass gap in a holographic Dirac semimetal and subseq…

cond-mat.quant-gas2018★ 188 cited

Observation of a space-time crystal in a superfluid quantum gas

Jasper Smits, Lei Liao, Henk Stoof +1

Time crystals are a phase of matter, for which the discrete time symmetry of the driving Hamiltonian is spontaneously broken. The breaking of discrete time symmetry has been observ…