Universal breakdown of Kibble-Zurek scaling in fast quenches across a phase transition
HB Zeng, CY Xia, A Del Campo - Physical Review Letters, 2023 - APS
The crossing of a continuous phase transition gives rise to the formation of topological
defects described by the Kibble-Zurek mechanism (KZM) in the limit of slow quenches. The …
defects described by the Kibble-Zurek mechanism (KZM) in the limit of slow quenches. The …
Experimental realization of two-dimensional weak topological insulators
We report the experimental realization of a two-dimensional (2D) weak topological insulator
(WTI) in spinless Su–Schrieffer–Heeger circuits with parity–time and chiral symmetries …
(WTI) in spinless Su–Schrieffer–Heeger circuits with parity–time and chiral symmetries …
Klein-bottle quadrupole insulators and Dirac semimetals
The Benalcazar-Bernevig-Hughes (BBH) quadrupole insulator model is a cornerstone
model for higher-order topological phases. It requires π-flux threading through each …
model for higher-order topological phases. It requires π-flux threading through each …
Topological phases in photonic microring lattices with projective symmetry
Symmetry plays a key role in classifying topological phases, which can be enriched by the
projective symmetry group in the presence of artificial gauge fields (AGFs). Here, we utilize …
projective symmetry group in the presence of artificial gauge fields (AGFs). Here, we utilize …
Emerging topological multiferroics from the 2D Rice-Mele model
We introduce a two-dimensional dimerized lattice model that reveals a remarkable feature:
the emergence of a complex, non-trivial topological multiferroic phase marked by zero Berry …
the emergence of a complex, non-trivial topological multiferroic phase marked by zero Berry …
Boundary-induced topological transition in an open Su-Schrieffer-Heeger model
A Bissonnette, N Delnour, A Mckenna, H Eleuch… - Physical Review B, 2024 - APS
We consider a Su-Schrieffer-Heeger (SSH) chain to each end of which we attach a semi-
infinite undimerized chain (lead). We study the effect of the openness of the SSH model on …
infinite undimerized chain (lead). We study the effect of the openness of the SSH model on …
Heavy-boundary mode patterning and dynamics of topological phonons in polymer chains and supramolecular lattices on surfaces
JD Cojal González, J Rondomanski, K Polthier… - Nature …, 2024 - nature.com
In topological band theory, phonon boundary modes consequence of a topologically non-
trivial band structure feature desirable properties for atomically-precise technologies, such …
trivial band structure feature desirable properties for atomically-precise technologies, such …
Cataloging topological phases of stacked Su-Schrieffer-Heeger chains by a systematic breaking of symmetries
A Agrawal, JN Bandyopadhyay - Physical Review B, 2023 - APS
Two-dimensional (2D) model of a weak topological insulator with an N stacked Su-Schrieffer-
Heeger chain is studied. This study starts with a basic model with all the fundamental …
Heeger chain is studied. This study starts with a basic model with all the fundamental …
Twofold topological phase transitions induced by third-nearest-neighbor hoppings in one-dimensional chains
Y Betancur-Ocampo, B Manjarrez-Montañez… - Physical Review B, 2024 - APS
Strong long-range hoppings up to third-nearest neighbors may induce a topological phase
transition in one-dimensional chains. Unlike the Su-Schrieffer-Heeger model, this transition …
transition in one-dimensional chains. Unlike the Su-Schrieffer-Heeger model, this transition …
Tunable Dirac points in a two-dimensional non-symmorphic wallpaper group lattice
MAJ Herrera, D Bercioux - Communications Physics, 2023 - nature.com
Non-symmorphic symmetries protect Dirac nodal lines and cones in lattice systems. Here,
we investigate the spectral properties of a two-dimensional lattice belonging to a non …
we investigate the spectral properties of a two-dimensional lattice belonging to a non …