Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Jolicoeur, Thierry"'
Autor:
Le, Ngoc Duc, Jolicoeur, Thierry
Publikováno v:
Physical Review B107, 125129 (2023)
We study the fractional quantum Hall effect in the central Landau level of bilayer graphene. By tuning the external applied magnetic field and the electric bias between the two layers one can access a regime where there is a degeneracy between Landau
Externí odkaz:
http://arxiv.org/abs/2210.07787
Autor:
Le, Ngoc Duc, Jolicoeur, Thierry
Publikováno v:
Phys. Rev. B105, 075203 (2022)
We study spin and valley ordering in the quantum Hall fractions in monolayer graphene at Landau level filling factors $\nu_G=-2+n/3$ $(n=2,4,5)$. We use exact diagonalizations on the spherical as well as toroidal geometry by taking into account the e
Externí odkaz:
http://arxiv.org/abs/2111.15453
A recent work [Balram, Jain, and Barkeshli, Phys. Rev. Res. ${\bf 2}$, 013349 (2020)] has suggested that an unconventional state describing $\mathbb{Z}_{n}$ superconductivity of composite bosons, which supports excitations with charge $1/(3n)$ of the
Externí odkaz:
http://arxiv.org/abs/2011.12195
Autor:
Zuo, Zheng-Wei, Balram, Ajit C., Pu, Songyang, Zhao, Jianyun, Jolicoeur, Thierry, Wójs, A., Jain, J. K.
Publikováno v:
Phys. Rev. B 102, 075307 (2020)
The nature of the state at low Landau-level filling factors has been a longstanding puzzle in the field of the fractional quantum Hall effect. While theoretical calculations suggest that a crystal is favored at filling factors $\nu\lesssim 1/6$, expe
Externí odkaz:
http://arxiv.org/abs/2002.09356
Autor:
Jolicoeur, Thierry, Pandey, Bradraj
Publikováno v:
Phys. Rev. B 100, 115422 (2019)
Monolayer graphene under a strong perpendicular field exhibit quantum Hall ferromagnetism with spontaneously broken spin and valley symmetry. The approximate SU(4) spin/valley symmetry is broken by small lattice scale effects in the central Landau le
Externí odkaz:
http://arxiv.org/abs/1907.04612
Autor:
Jolicoeur, Thierry, Golinelli, Olivier
Publikováno v:
Comptes rendus - Chimie 22, 445 (2019)
The antiferromagnetic Heisenberg spin chain with integer spin has short-range magnetic order and an excitation energy gap above the ground state. This so-called Haldane gap is proportional to the exchange coupling $J$ of the Heisenberg chain. We disc
Externí odkaz:
http://arxiv.org/abs/1906.12207
Publikováno v:
Phys. Rev. B 99, 115139 (2019)
We re-examine the nature of the ground states of bilayer graphene at odd integer filling factors within a simplified model of nearly degenerate $n=0$ and $n=1$ Landau levels. Previous Hartree-Fock studies have found that ferroelectric states with orb
Externí odkaz:
http://arxiv.org/abs/1812.09334
Autor:
Nguyen, Thanh Long, Raimond, Jean-Michel, Sayrin, Clément, Cortinas, Rodrigo, Cantat-Moltrecht, Tigrane, Assemat, Fédéric, Dotsenko, Igor, Gleyzes, Sébastien, Haroche, Serge, Roux, Guillaume, Jolicoeur, Thierry, Brune, Michel
Publikováno v:
Phys. Rev. X 8, 011032 (2018)
The main objective of quantum simulation is an in-depth understanding of many-body physics. It is important for fundamental issues (quantum phase transitions, transport, . . . ) and for the development of innovative materials. Analytic approaches to
Externí odkaz:
http://arxiv.org/abs/1707.04397
Publikováno v:
Phys. Rev. B 102, 245107 (2020)
We investigate fractional quantum Hall states for model interactions restricted to a repulsive hard-core. When the hard-core excludes relative angular momentum $m=1$ between spinless electrons the ground state at Landau level filling factor $\nu=1/3$
Externí odkaz:
http://arxiv.org/abs/1703.07095
Autor:
Jolicoeur, Thierry
Publikováno v:
Phys. Rev. B 95, 075201 (2017)
We revisit the theory of the collective neutral excitation mode in the fractional quantum Hall effect at Landau level filling fractions $\nu=1/3$ and $\nu=7/3$. We include the effect of finite thickness of the two-dimensional electron gas and use ext
Externí odkaz:
http://arxiv.org/abs/1610.04477