Zobrazeno 1 - 10
of 901
pro vyhledávání: '"Bultinck, P."'
Many quantum chemical similarity measures have been derived and substantiated by applying concepts and quantities from information theory to the electron density. To justify the use of information theory, the electron density is usually equated to a
Externí odkaz:
http://arxiv.org/abs/2410.08929
Autor:
Kwan, Yves H., Wang, Ziwei, Wagner, Glenn, Simon, Steven H., Parameswaran, S. A., Bultinck, Nick
We introduce and study new interacting topological states that arise in time-reversal symmetric bands with an underlying obstruction to forming localized states. If the $U(1)$ valley symmetry linked to independent charge conservation in each time-rev
Externí odkaz:
http://arxiv.org/abs/2406.15343
Autor:
Wang, Ziwei, Kwan, Yves H., Wagner, Glenn, Simon, Steven H., Bultinck, Nick, Parameswaran, S. A.
We explore the phase diagrams of moir\'e materials in search of a new class of intervalley-coherent correlated insulating state: the Chern texture insulator (CTI). This phase of matter, proposed in a companion paper, breaks valley $U(1)$ symmetry in
Externí odkaz:
http://arxiv.org/abs/2406.15342
Autor:
Mortier, Quinten, Devos, Lukas, Burgelman, Lander, Vanhecke, Bram, Bultinck, Nick, Verstraete, Frank, Haegeman, Jutho, Vanderstraeten, Laurens
We show how fermionic statistics can be naturally incorporated in tensor networks on arbitrary graphs through the use of graded Hilbert spaces. This formalism allows to use tensor network methods for fermionic lattice systems in a local way, avoiding
Externí odkaz:
http://arxiv.org/abs/2404.14611
Autor:
Bultinck, Nick
We consider electron pairing in a two-dimensional thermally disordered itinerant anti-ferromagnet. It is shown that transverse spin fluctuations in such a state can give rise to superconductivity with a sizeable critical temperature $T_c$. Below $T_c
Externí odkaz:
http://arxiv.org/abs/2403.07999
Autor:
Morfoot, Archie B., Kim, Timur K., Watson, Matthew D., Haghighirad, Amir A., Singh, Shiv J., Bultinck, Nick, Coldea, Amalia I.
Publikováno v:
Communications Physics 6, 362 (2023)
Iron-chalcogenide superconductors display rich phenomena caused by orbital-dependent band shifts and electronic correlations. Additionally, they are potential candidates for topological superconductivity due to the band inversion between the Fe $d$ b
Externí odkaz:
http://arxiv.org/abs/2401.10769
Autor:
He, Yuchi, Rausch, Roman, Peschke, Matthias, Karrasch, Christoph, Corboz, Philippe, Bultinck, Nick, Parameswaran, S. A.
We use unrestricted Hartree-Fock, density matrix renormalization group, and variational projected entangled pair state calculations to investigate the ground state phase diagram of the triangular lattice Hubbard model at "half doping" relative to sin
Externí odkaz:
http://arxiv.org/abs/2311.10146
Autor:
Wang, Ziwei, Kwan, Yves H., Wagner, Glenn, Bultinck, Nick, Simon, Steven H., Parameswaran, S. A.
We study the phase diagram of magic-angle twisted symmetric trilayer graphene in the presence of uniaxial heterostrain and interlayer displacement field. For experimentally reasonable strain, our mean-field analysis finds robust Kekul\'e spiral order
Externí odkaz:
http://arxiv.org/abs/2310.16094
It is a matter of current debate whether the gate-tunable superconductivity in twisted bilayer graphene is phonon-mediated or arises from electron-electron interactions. The recent observation of the strong coupling of electrons to so-called $K$-phon
Externí odkaz:
http://arxiv.org/abs/2308.10938
We consider electronic systems with a spontaneously broken continuous symmetry. The scattering vertex between electrons and Goldstone modes is calculated over the entire Brillouin zone using the random phase approximation. This calculation reveals tw
Externí odkaz:
http://arxiv.org/abs/2307.05699