Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Jean-Marie Stéphan"'
Publikováno v:
Physical Review X, Vol 14, Iss 1, p 011030 (2024)
We study two-dimensional (2D) droplets of noninteracting electrons in a strong magnetic field, placed in a confining potential with arbitrary shape. Using semiclassical methods adapted to the lowest Landau level, we obtain near-Gaussian energy eigens
Externí odkaz:
https://doaj.org/article/3ab7d42adc094614b593cc8222b72a8b
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Fluctuations, both quantum and classical, contain important information about the underlying system. Here, the authors show that for measurements on a subregion with a sharp corner, fluctuations have the same shape dependence for a large variety of s
Externí odkaz:
https://doaj.org/article/f1de9f5def8548c1872e5a4cb46301eb
Autor:
Jean-Marie Stéphan
Publikováno v:
SciPost Physics Lecture Notes, p 26 (2021)
Standard statistical mechanical or condensed matter arguments tell us that bulk properties of a physical system do not depend too much on boundary conditions. Random tilings of large regions provide counterexamples to such intuition, as illustrate
Externí odkaz:
https://doaj.org/article/edcff4130c8f455d8f01ee365f81070a
Autor:
Jean-Marie Stéphan
Publikováno v:
SciPost Physics, Vol 6, Iss 5, p 057 (2019)
We study the edge behavior of inhomogeneous one-dimensional quantum systems, such as Lieb-Liniger models in traps or spin chains in spatially varying magnetic fields. For free systems these fall into several universality classes, the most generic
Externí odkaz:
https://doaj.org/article/caaabb046c584012b1b3015597fb4dbb
Publikováno v:
New Journal of Physics, Vol 20, Iss 10, p 103036 (2018)
We consider the unitary dynamics of interacting fermions in the lowest Landau level, on spherical and toroidal geometries. The dynamics are driven by the interaction Hamiltonian which, viewed in the basis of single-particle Landau orbitals, contains
Externí odkaz:
https://doaj.org/article/88f5a012829247dfb58a4695a297c155
Publikováno v:
New Journal of Physics, Vol 15, Iss 1, p 015004 (2013)
We study resonating-valence-bond (RVB) states on the square lattice of spins and of dimers, as well as SU ( N )-invariant states that interpolate between the two. These states are ground states of gapless models, although the SU (2)-invariant spin RV
Externí odkaz:
https://doaj.org/article/b27e1723f8754c3e8055bc79467f14c5
Publikováno v:
SciPost Physics, Vol 2, Iss 1, p 002 (2017)
Conformal field theory (CFT) has been extremely successful in describing large-scale universal effects in one-dimensional (1D) systems at quantum critical points. Unfortunately, its applicability in condensed matter physics has been limited to sit
Externí odkaz:
https://doaj.org/article/a7e14c8d9bcc4789b40a6a4a86b8dd13
Publikováno v:
Journal of Physics A: Mathematical and Theoretical
Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2021, 54 (1), pp.015002. ⟨10.1088/1751-8121/abcab9⟩
Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2021, 54 (1), pp.015002. ⟨10.1088/1751-8121/abcab9⟩
We revisit the problem of computing the boundary density profile of a droplet of two-dimensional one-component plasma (2D OCP) with logarithmic interaction between particles in a confining harmonic potential. At a sufficiently low temperature but sti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a646c80f565eefd9d81adaf0b9edcda1
https://hal.archives-ouvertes.fr/hal-03450195
https://hal.archives-ouvertes.fr/hal-03450195
Publikováno v:
SciPost Physics
SciPost Physics, SciPost Foundation, 2021, 11 (1), ⟨10.21468/SciPostPhys.11.1.016⟩
SciPost Physics, Vol 11, Iss 1, p 016 (2021)
SciPost Physics, SciPost Foundation, 2021, 11 (1), ⟨10.21468/SciPostPhys.11.1.016⟩
SciPost Physics, Vol 11, Iss 1, p 016 (2021)
The gapless modes on the edge of four-dimensional (4D) quantum Hall droplets are known to be anisotropic: they only propagate in one direction, foliating the 3D boundary into independent 1D conduction channels. This foliation is extremely sensitive t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a7419fc23be91b403f0e064623cc339
Publikováno v:
Journal of Physics A: Mathematical and Theoretical
J.Phys.A
J.Phys.A, 2020, 53 (15), pp.155001. ⟨10.1088/1751-8121/ab7580⟩
Journal of Physics A: Mathematical and Theoretical, 53(15):155001. IOP Publishing Ltd.
J.Phys.A
J.Phys.A, 2020, 53 (15), pp.155001. ⟨10.1088/1751-8121/ab7580⟩
Journal of Physics A: Mathematical and Theoretical, 53(15):155001. IOP Publishing Ltd.
We develop a general framework to compute the scaling of entanglement entropy in inhomogeneous one-dimensional quantum systems belonging to the Luttinger liquid universality class. While much insight has been gained in homogeneous systems by making u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7ece4c0021a437237767c2bcf219359