Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Burnell, F. J."'
Publikováno v:
Phys. Rev. B 107, 224516 (2023)
The possibility of realizing pair density wave (PDW) phases, in which Cooper pairs have a finite momentum, presents an interesting challenge that has been studied in a wide variety of systems. In conventional superconductors, this is only possible wh
Externí odkaz:
http://arxiv.org/abs/2209.14469
We report on exotic response properties in 3D time-reversal invariant Weyl semimetals with mirror symmetry. Despite having a vanishing anomalous Hall coefficient, we find that the momentum-space quadrupole moment formed by four Weyl nodes determines
Externí odkaz:
http://arxiv.org/abs/2102.08959
Publikováno v:
Phys. Rev. B 102, 224402 (2020)
Here we revisit the thermodynamics of the Kitaev quantum spin liquid realized on the honeycomb lattice. We address two main questions: First, we investigate whether there are observable thermodynamic signatures of the topological Majorana boundary mo
Externí odkaz:
http://arxiv.org/abs/2008.01822
Publikováno v:
Phys. Rev. B 103, 245128 (2021)
Two new recently proposed classes of topological phases, namely fractons and higher order topological insulators (HOTIs), share at least superficial similarities. The wide variety of proposals for these phases calls for a universal field theory descr
Externí odkaz:
http://arxiv.org/abs/1909.05868
Publikováno v:
Phys. Rev. Research 2, 023249 (2020)
Fracton order is an intriguing new type of order which shares many common features with topological order, such as topology-dependent ground state degeneracies, and excitations with mutual statistics. However, it also has several distinctive geometri
Externí odkaz:
http://arxiv.org/abs/1904.11530
Publikováno v:
Phys. Rev. B 101, 224503 (2020)
We present a microscopic calculation of the phase diagram of the Ising superconductor NbSe$_{2}$ in presence of both in-plane magnetic field and Rashba spin-orbit coupling (SOC). Repulsive interactions lead to two distinct instabilities, in singlet-
Externí odkaz:
http://arxiv.org/abs/1904.05470
Publikováno v:
Phys. Rev. B 98, 235102 (2018)
Higher-order topological insulators have a modified bulk-boundary correspondence compared to other topological phases: instead of gapless edge or surface states, they have gapped edges and surfaces, but protected modes at corners or hinges. Here, we
Externí odkaz:
http://arxiv.org/abs/1807.09788
In this paper, we explore the interplay between symmetry and fracton order, motivated by the analogous close relationship for topologically ordered systems. Specifically, we consider models with 3D planar subsystem symmetry, and show that these can r
Externí odkaz:
http://arxiv.org/abs/1805.09800
Publikováno v:
SciPost Phys. 6, 007 (2019)
We study spin systems which exhibit symmetries that act on a fractal subset of sites, with fractal structures generated by linear cellular automata. In addition to the trivial symmetric paramagnet and spontaneously symmetry broken phases, we construc
Externí odkaz:
http://arxiv.org/abs/1805.04097
Publikováno v:
Phys. Rev. B 98, 035112 (2018)
In this work, we introduce a new type of topological order which is protected by subsystem symmetries which act on lower dimensional subsets of lattice many-body system, e.g. along lines or planes in a three dimensional system. The symmetry groups fo
Externí odkaz:
http://arxiv.org/abs/1803.02369