Zobrazeno 1 - 10
of 315
pro vyhledávání: '"Repellin, C."'
The exploration of atomic fractional quantum Hall (FQH) states is now within reach in optical-lattice experiments. While ground-state signatures have been observed in a system realizing the Hofstadter-Bose-Hubbard model in a box [Leonard et al., Natu
Externí odkaz:
http://arxiv.org/abs/2306.01624
Autor:
Zhou, T. -W., Cappellini, G., Tusi, D., Franchi, L., Parravicini, J., Repellin, C., Greschner, S., Inguscio, M., Giamarchi, T., Filippone, M., Catani, J., Fallani, L.
Publikováno v:
Science 381, 427-430 (2023). This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on 27 July 2023
The Hall effect, which originates from the motion of charged particles in magnetic fields, has deep consequences for the description of materials, extending far beyond condensed matter. Understanding such an effect in interacting systems represents a
Externí odkaz:
http://arxiv.org/abs/2205.13567
Publikováno v:
Phys. Rev. A 102, 063316 (2020)
Realizing strongly-correlated topological phases of ultracold gases is a central goal for ongoing experiments. And while fractional quantum Hall states could soon be implemented in small atomic ensembles, detecting their signatures in few-particle se
Externí odkaz:
http://arxiv.org/abs/2005.09689
Publikováno v:
npj Quantum Materials volume 3, Article number: 14 (2018)
Fractional quantum Hall-superconductor heterostructures may provide a platform towards non-abelian topological modes beyond Majoranas. However their quantitative theoretical study remains extremely challenging. We propose and implement a numerical se
Externí odkaz:
http://arxiv.org/abs/1707.08579
Publikováno v:
Phys. Rev. B 90, 045114 (2014)
We analyze the collective magneto-roton excitations of bosonic Laughlin $\nu=1/2$ fractional quantum Hall (FQH) states on the torus and of their analog on the lattice, the fractional Chern insulators (FCIs). We show that, by applying the appropriate
Externí odkaz:
http://arxiv.org/abs/1404.4658
Publikováno v:
Phys. Rev. B 90, 245401 (2014)
We propose a simple microscopic model to numerically investigate the stability of a two dimensional fractional topological insulator (FTI). The simplest example of a FTI consists of two decoupled copies of a Laughlin state with opposite chiralities.
Externí odkaz:
http://arxiv.org/abs/1402.2652
Publikováno v:
Phys. Rev. B 87, 205137 (2013)
We report the observation of a new series of Abelian and non-Abelian topological states in fractional Chern insulators (FCI). The states appear at bosonic filling nu= k/(C+1) (k, C integers) in several lattice models, in fractionally filled bands of
Externí odkaz:
http://arxiv.org/abs/1207.6385
Publikováno v:
Phys. Rev. B 87, 205136 (2013)
We report the first numerical observation of composite fermion (CF) states in fractional Chern insulators (FCI) using exact diagonalization. The ruby lattice Chern insulator model for both fermions and bosons exhibits a clear signature of CF states a
Externí odkaz:
http://arxiv.org/abs/1206.2626
Autor:
Léonard J; Department of Physics, Harvard University, Cambridge, MA, USA. julian.leonard@tuwien.ac.at.; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Vienna, Austria. julian.leonard@tuwien.ac.at., Kim S; Department of Physics, Harvard University, Cambridge, MA, USA., Kwan J; Department of Physics, Harvard University, Cambridge, MA, USA., Segura P; Department of Physics, Harvard University, Cambridge, MA, USA., Grusdt F; Department of Physics and ASC, Ludwig-Maximilians-Universität München, Munich, Germany.; Munich Center for Quantum Science and Technology (MCQST), Munich, Germany., Repellin C; Université Grenoble Alpes, CNRS, LPMMC, Grenoble, France., Goldman N; Center for Nonlinear Phenomena and Complex Systems (CENOLI), Université Libre de Bruxelles, Brussels, Belgium., Greiner M; Department of Physics, Harvard University, Cambridge, MA, USA.
Publikováno v:
Nature [Nature] 2023 Jul; Vol. 619 (7970), pp. 495-499. Date of Electronic Publication: 2023 Jun 21.
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