63 citations · 403 across the 18 of their papers we have counts for
17 papers
Phase transitions in coupled Ising chains and SO()-symmetric spin chains
Yohei Fuji, Sylvain Capponi, Lukas Devos +1
We investigate the nature of quantum phase transitions in a (1+1)-dimensional field theory composed of copies of the Ising conformal field theory interacting via competing rele…
Magnetic-field-induced Tomonaga-Luttinger liquid and Bose-Einstein condensate phases in an organic S=1 Haldane chain
I. Jakovac, M. S. Grbić, M. Dupont +7
We present a comprehensive low-temperature H nuclear magnetic resonance (NMR) study of magnetic field-induced phases and spin fluctuations in an isotropic Haldane chain system…
Critical Berezinskii-Kosterlitz-Thouless dynamics in the archetypal two-dimensional spin system BaCuSiOCl
K. M. Ranjith, Maxime Dupont, Steffen Krämer +6
We study the spin dynamics in the quasi-2D spin- dimer compound BaCuSiOCl, which exhibits a magnetic field-induced Bose-Einstein condensate (BEC) of triplons.…
Non-Landau quantum phase transition in modulated SU(N) Heisenberg spin chains
Sylvain Capponi, Lukas Devos, Philippe Lecheminant +2
We investigate the nature of the quantum phase transition in modulated SU(N) Heisenberg spin chains. In the odd-N case, the transition separates a trivial non-degenerate phase to a…
Symmetry-protected topological phases in two-leg SU(N) spin ladder with unequal spins
Sylvain Capponi, Pierre Fromholz, Philippe Lecheminant +1
Chiral Haldane phases are examples of one-dimensional topological states of matter which are protected by projective SU() group (or its subgroup $\mathbb{Z}_N \times \mathbb{Z}_…
Detection of a Disorder-Induced Bose-Einstein Condensate in a Quantum Spin Material at High Magnetic Fields
A. Orlova, H. Mayaffre, S. Krämer +5
The coupled spin-1 chains material NiCl-4SC(NH) (DTN) doped with Br impurities is expected to be a perfect candidate for observing many-body localization at high magnet…