Non-perturbative methodologies for low-dimensional strongly-correlated systems: From non-abelian bosonization to truncated spectrum methods

AJA James, RM Konik, P Lecheminant… - Reports on Progress …, 2018 - iopscience.iop.org
We review two important non-perturbative approaches for extracting the physics of low-
dimensional strongly correlated quantum systems. Firstly, we start by providing a …

Spectrum of a magnetized strong-leg quantum spin ladder

D Schmidiger, P Bouillot, T Guidi, R Bewley, C Kollath… - Physical review …, 2013 - APS
Inelastic neutron scattering is used to measure the spin excitation spectrum of the
Heisenberg S= 1/2 ladder material (C 7 H 10 N) 2 CuBr 4 in its entirety, both in the gapped …

Attractive Tomonaga-Luttinger liquid in a quantum spin ladder

M Jeong, H Mayaffre, C Berthier, D Schmidiger… - Physical review …, 2013 - APS
We present NMR measurements of a strong-leg spin-1/2 Heisenberg antiferromagnetic
ladder compound (C 7 H 10 N) 2 CuBr 4 under magnetic fields up to 15 T in the temperature …

Unified phase diagram of antiferromagnetic SU() spin ladders

A Weichselbaum, S Capponi, P Lecheminant… - Physical Review B, 2018 - APS
Motivated by near-term experiments with ultracold alkaline-earth atoms confined to optical
lattices, we establish numerically and analytically the phase diagram of two-leg SU (N) spin …

Magnetic transitions in the spin- frustrated magnet and strong lattice softening in and below 200 K

R Nath, KM Ranjith, B Roy, DC Johnston, Y Furukawa… - Physical Review B, 2014 - APS
The crystallographic, magnetic, and thermal properties of polycrystalline Bi Mn 2 PO 6 and
its nonmagnetic analog Bi Zn 2 PO 6 are investigated by x-ray diffraction, magnetization M …

One-dimensional physics in the 21st century

T Giamarchi - Comptes Rendus. Physique, 2016 - comptes-rendus.academie-sciences …
Solids exhibit strong quantum properties, and are in fact quantum systems one can touch!
This is due to the extremely high energy scales of the Fermi energy that allow the system to …

[PDF][PDF] Quantum simulation: From basic principles to applications Foreword

L Sanchez-Palencia - Comptes …, 2018 - comptes-rendus.academie-sciences …
Envisioned by Richard Feynman in the early 1980s, quantum simulation has received
dramatic impetus thanks to the development of a variety of plateforms able to emulate a wide …

Magnetic entropy landscape and Grüneisen parameter of a quantum spin ladder

H Ryll, K Kiefer, C Rüegg, S Ward, KW Krämer, D Biner… - Physical Review B, 2014 - APS
We present measurements of the magnetic entropy landscape and Grüneisen parameter of
the Cu 2+ complex (C 5 H 12 N) 2 Cu Cl 4 in a magnetic field. Our thermodynamic …

Temperature dependence of the NMR spin-lattice relaxation rate for spin- chains

E Coira, P Barmettler, T Giamarchi, C Kollath - Physical Review B, 2016 - APS
We use recent developments in the framework of a time-dependent matrix product state
method to compute the nuclear magnetic resonance relaxation rate 1/T 1 for spin-1/2 chains …

Superfluid/Bose-glass transition in one dimension

Z Ristivojevic, A Petković, P Le Doussal, T Giamarchi - Physical Review B, 2014 - APS
We consider a one-dimensional system of interacting bosons in a random potential. At zero
temperature, it can be either in the superfluid or in the insulating phase. We study the …