Results 71 to 80 of about 568,421 (287)

Focus on topological quantum computation

New Journal of Physics, 2014
Topological quantum computation started as a niche area of research aimed at employing particles with exotic statistics, called anyons, for performing quantum computation. Soon it evolved to include a wide variety of disciplines.
Jiannis K Pachos, Steven H Simon
doaj   +1 more source

A degeneracy bound for homogeneous topological order

SciPost Physics, 2021
We introduce a notion of homogeneous topological order, which is obeyed by most, if not all, known examples of topological order including fracton phases on quantum spins (qudits). The notion is a condition on the ground state subspace, rather than on
Jeongwan Haah
doaj   +1 more source

A Topology for a Lattice-Ordered Group [PDF]

Transactions of the American Mathematical Society, 1974
Let G be an arbitrary lattice-ordered group. We define a topology on G, called the J \mathcal {J} -topology, which is a group and lattice topology for G and which is preserved by cardinal products. The J \mathcal {J} -topology is the interval topology on totally ordered groups and is discrete if
openaire   +1 more source

Predicting Atomic Charges in MOFs by Topological Charge Equilibration

Advanced Functional Materials, EarlyView.
An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi, Sumukh Shankar Sharadaprasad, Rochus Schmid   +2 more
wiley   +1 more source

Topological nano-switches in higher-order topological insulators

New Journal of Physics
We consider multi-terminal transport through a flake of rectangular shape of a two-dimensional topological insulator in the presence of an in-plane magnetic field.
Joseph Poata, Fabio Taddei, Michele Governale   +2 more
doaj   +1 more source

Photonic topological Chern insulators based on Tellegen metacrystals

New Journal of Physics, 2015
We demonstrate that topologically nontrivial states of light can be engineered in periodic photonic structures containing media with a Tellegen-type bianisotropic response. Whilst in such bianisotropic materials the time-reversal symmetry is broken, they
Daniel A Jacobs, Andrey E Miroshnichenko, Yuri S Kivshar, Alexander B Khanikaev   +3 more
doaj   +1 more source

Gapped Symmetry Preserving Surface-State for the Electron Topological Insulator

, 2013
It is well known that the 3D electronic topological insulator (TI) with charge-conservation and time-reversal symmetry cannot have a trivial insulating surface that preserves symmetry.
Potter, Andrew C., Senthil, T., Wang, Chong   +2 more
core   +1 more source

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

Advanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan, Joe Sunny, Tamer Karaman, Reshma Peremadathil‐Pradeep, Emily Darwin, Felix Büttner, Dieter Suess, Hans Josef Hug, Manfred Albrecht   +8 more
wiley   +1 more source

Topological order in higher composites

Physical Review Research
We introduce the concept of composite topological order in multicomponent systems. In such a state topological order appears only in higher-than-usual composites, with no topological order in elementary fields.
Egor Babaev
doaj   +1 more source

Irreducible many-body correlations in topologically ordered systems

New Journal of Physics, 2016
Topologically ordered systems exhibit large-scale correlation in their ground states, which may be characterized by quantities such as topological entanglement entropy.
Yang Liu, Bei Zeng, D L Zhou
doaj   +1 more source