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pro vyhledávání: '"Račiūnas, Mantas"'
Recent experiments demonstrated deeply subwavelength lattices using atoms with $N$ internal states Raman-coupled with lasers of wavelength $\lambda$. The resulting unit cell was $\lambda/2N$ in extent, an $N$-fold reduction compared to the usual $\la
Externí odkaz:
http://arxiv.org/abs/2210.05515
Autor:
Rajagopal, Shankari V., Shimasaki, Toshihiko, Dotti, Peter, Račiūnas, Mantas, Senaratne, Ruwan, Anisimovas, Egidijus, Eckardt, André, Weld, David M.
Publikováno v:
Phys. Rev. Lett. 123, 223201 (2019)
Phasonic degrees of freedom are unique to quasiperiodic structures, and play a central role in poorly-understood properties of quasicrystals from excitation spectra to wavefunction statistics to electronic transport. However, phasons are challenging
Externí odkaz:
http://arxiv.org/abs/1909.05200
Publikováno v:
Phys. Rev. A 98, 063621 (2018)
We propose a set of schemes to create and probe fractionally charged excitations of a fractional Chern insulator state in an optical lattice. This includes the creation of localized quasiparticles and quasiholes using both static local defects and th
Externí odkaz:
http://arxiv.org/abs/1804.02002
Autor:
Anisimovas, Egidijus, Račiūnas, Mantas, Sträter, Christoph, Eckardt, André, Spielman, I. B., Juzeliūnas, Gediminas
Publikováno v:
Phys. Rev. A 94, 063632 (2016)
We consider a one-dimensional "zigzag" lattice, pictured as a two-site wide single strip taken from a triangular lattice, affected by a tunable homogeneous magnetic flux piercing its triangular plaquettes. We focus on a semi-synthetic lattice produce
Externí odkaz:
http://arxiv.org/abs/1610.00709
Publikováno v:
Phys. Rev. A 93, 043618 (2016)
We propose a simple scheme for the realization of a topological quasienergy band structure with ultracold atoms in a periodically driven optical square lattice. It is based on a circular lattice shaking in the presence of a superlattice that lowers t
Externí odkaz:
http://arxiv.org/abs/1602.06784
Akademický článek
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Autor:
Račiūnas, Mantas
The discovery of fractional quantum Hall effect (FQHE) in 2D electron gas gave rise to immense interest in topological phases of matter. One of the most intriguing features of FQHE state is fractionally charged excitations which embodies anyonic stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::0954a9b673d5118a7bd4d88f2b01961a
https://repository.vu.lt/VU:ELABAETD23192816&prefLang=en_US
https://repository.vu.lt/VU:ELABAETD23192816&prefLang=en_US