Concept
Dirac spinor
Publications associées (56)
Hausdorff dimension of fermions on a random lattice
Geometric properties of lattice quantum gravity in two dimensions are studied numerically via Monte Carlo on Euclidean Dynamical Triangulations. A new computational method is proposed to simulate gravity coupled with fermions, which allows the study of int ...
Elsevier2024Spin wave spectra of single crystal CoPS3
Henrik Moodysson Rønnow, Luc Testa, Ursula Bengaard Hansen, Mechthild Enderle
The spin waves in single crystals of the layered van der Waals antiferromagnet CoPS3 have been measured using inelastic neutron scattering. The data show four distinct spin wave branches with large (>14 meV) energy gaps at the Brillouin zone center indicat ...
AMER PHYSICAL SOC2023Bounds on scattering of neutral Goldstones
Andrea Guerrieri, Denis Karateev, Kelian Philippe Häring
We study the space of scattering amplitudes of neutral Goldstone bosons in four space-time dimensions. We establish universal bounds on the first two non-universal Wilson coefficients of the low energy Effective Field Theory (EFT) for such particl ...
2023Possibility to detect the bound state of the Heisenberg ferromagnetic chain at intermediate temperature
Frédéric Mila, Mithilesh Nayak
Motivated by the lack of direct evidence with inelastic neutron scattering of the well documented bound state of Heisenberg ferromagnets, we use the time-dependent thermal density matrix renormalization group algorithm to study the temperature dependence o ...
AMER PHYSICAL SOC2022Static and dynamic properties of non-collinear quantum antiferromagnets explored by neutron scattering
This thesis is devoted to the investigation of static and dynamic properties of
two different sets of quantum magnets with neutron scattering techniques and
the help of linear spin wave theory.
Both systems are copper-based with spin-1/2, which makes them ...
EPFL2021