Results 1 to 10 of about 129,500 (87)

Separating Topological Noise from Features Using Persistent Entropy [PDF]

, 2016
Topology is the branch of mathematics that studies shapes and maps among them. From the algebraic definition of topology a new set of algorithms have been derived.
Atienza Martínez, María Nieves, González Díaz, Rocío, Rucco, Matteo   +2 more
core   +1 more source

Emergence of intrinsic superconductivity below 1.178 K in the topologically non-trivial semimetal state of CaSn3 [PDF]

, 2018
Topological materials which are also superconducting are of great current interest, since they may exhibit a non-trivial topologically-mediated superconducting phase.
Adams, P. W., Graf, D., Hu, J., Mao, Z. Q., Wang, Y., Womack, F. N., Zhu, Y. L.   +6 more
core   +3 more sources

A weakly Stegall space that is not a Stegall space [PDF]

, 2002
A topological space X is said to belong to the class of Stegall (weakly Stegall) spaces if for every Baire (complete metric) space B and minimal usco φ : B2X, φ is single-valued at some point of B.
Moors, Warren B., Somasundaram, Sivajah
core   +3 more sources

Angular momentum and topological dependence of Kepler's Third Law in the Broucke-Hadjidemetriou-H\'enon family of periodic three-body orbits

, 2016
We use 57 recently found topological satellites of Broucke-Hadjidemetriou-Henon's periodic orbits with values of the topological exponent $k$ ranging from $k$ = 3 to $k$ = 58 to plot the angular momentum $L$ as a function of the period $T$, with both $L$
Dmitrašinović, Veljko, Janković, Marija R.   +1 more
core   +1 more source

Surface and bulk components of electrical conductivity in the (presumably special topological) Kondo insulator SmB6 at lowest temperatures

, 2014
Samarium hexaboride (SmB6) has recently been considered to be a topological Kondo insulator (TKI), the first strongly correlated electron system to exhibit topological surface conduction states.
Filipov, Volodymyr, Flachbart, Karol, Gabani, Slavomir, Pristas, Gabriel, Shitsevalova, Natalia, Siemensmeyer, Konrad, Sluchanko, Nikolay, Takacova, Iveta   +7 more
core   +1 more source

Essential curves in handlebodies and topological contractions [PDF]

, 2007
If $X$ is a compact set, a {\it topological contraction} is a self-embedding $f$ such that the intersection of the successive images $f^k(X)$, $k>0$, consists of one point.
Grines, Viatcheslav, Laudenbach, François   +1 more
core   +2 more sources

Superconductivity and non-metallicity induced by doping the topological insulators Bi2Se3 and Bi2Te3

, 2010
We show that by Ca-doping the Bi2Se3 topological insulator, the Fermi level can be fine tuned to fall inside the band gap and therefore suppress the bulk conductivity. Non-metallic Bi2Se3 crystals are obtained.
Alpichshev, Bernevig, Bernevig, Caywood, Checkelsky, Chen, D. Qu, Fleurial, Fu, Fu, Fu, Hor, Hor, Hsieh, Hsieh, Hulliger, Hulliger, J.G. Checkelsky, Miller, Mishray, Moore, Morosan, Morosan, N.P. Ong, Qu, R.J. Cava, Scherrer, Vaško, Xia, Y.S. Hor, Zhang, Zhang   +31 more
core   +1 more source

Topological Insulators in Ternary Compounds with a Honeycomb Lattice

, 2010
One of the most exciting subjects in solid state physics is a single layer of graphite which exhibits a variety of unconventional novel properties. The key feature of its electronic structure are linear dispersive bands which cross in a single point at ...
Chadov, Stanislav, Felser, Claudia, Kübler, Jürgen, Müchler, Lukas, Qi, Xiao-Liang, Yan, Binghai, Zhang, Hai-Jun, Zhang, Shou-Cheng   +7 more
core   +1 more source

Highly Transitive Actions of Surface Groups [PDF]

, 2009
A group action is said to be highly-transitive if it is $k$-transitive for every $k \ge 1$. The main result of this thesis is the following: Main Theorem: The fundamental group of a closed, orientable surface of genus > 1 admits a faithfull, highly ...
Kitroser, Daniel
core  

Topological Hall effect in thin films of Mn$_{1.5}$PtSn

, 2018
Spin chirality in metallic materials with non-coplanar magnetic order can give rise to a Berry phase induced topological Hall effect. Here, we report the observation of a large topological Hall effect in high-quality films of Mn$_{1.5}$PtSn that were ...
Felser, Claudia, Gayles, Jacob, Goennenwein, Sebastian T. B., Kriegner, Dominik, Markou, Anastasios, Schlitz, Richard, Schnelle, Walter, Swekis, Peter   +7 more
core   +1 more source