Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Nikolic, Predrag"'
Autor:
Nikolić, Predrag
The topological defects of Spin($n+1$) nematics in two spatial dimensions, known as disclinations, are characterized by the $\pi_1(\mathbb{R}P^n) = \textrm{Z}_2$ homotopy group for $n\ge2$. We argue that incompressible quantum liquids of disclination
Externí odkaz:
http://arxiv.org/abs/2409.16352
Autor:
Nikolić, Predrag
A many-body quantum system whose topological defects are conserved, abundant and mobile is a correlated quantum liquid. Since topological defects can be classified by homotopy groups, each homotopy identifies a class of quantum liquids. Here we explo
Externí odkaz:
http://arxiv.org/abs/2310.01493
Autor:
Nikolić, Predrag
We explore the stability of certain many-body quantum states which may exist at zero or finite temperatures, may lack long-range order and even topological order, and still are thermodynamically distinct from uncorrelated disordered phases. We sharpl
Externí odkaz:
http://arxiv.org/abs/2309.14424
Autor:
Gaudet, Xiaohan Yao Jonathan, Verma, Rahul, Graf, David E., Yang, Hung-Yu, Bahrami, Faranak, Zhang, Ruiqi, Aczel, Adam A., Subedi, Sujan, Torchinsky, Darius H., Sun, Jianwei, Bansil, Arun, Huang, Shin-Ming, Singh, Bahadur, Nikolic, Predrag, Blaha, Peter, Tafti, Fazel
Publikováno v:
Phys. Rev. X 13, 011035 (2023)
Weyl electrons are intensely studied due to novel charge transport phenomena such as chiral anomaly, Fermi arcs, and photogalvanic effect. Recent theoretical works suggest that Weyl electrons can also participate in magnetic interactions, and the Wey
Externí odkaz:
http://arxiv.org/abs/2206.05121
Autor:
Mays, Ryan, Nikolic, Predrag
Cooper pairing in ultrathin films of topological insulators, induced intrinsically or by proximity effect, can produce an energetically favorable spin-triplet superconducting state. The spin-orbit coupling acts as an SU(2) gauge field and stimulates
Externí odkaz:
http://arxiv.org/abs/2206.04065
Pyrochlore iridates are thought to be a fertile ground for the realization of topologically non-trivial and strongly correlated states of matter. Here we provide a compelling evidence of interacting Weyl electrons in Nd$_2$Ir$_2$O$_7$ and quadratic b
Externí odkaz:
http://arxiv.org/abs/2204.13722
Autor:
Liu, Ruiyang, Nikolic, Predrag K.
AI fairy tale companions play an important role in early childhood education as an augmentation for parents' efforts to close the participation gap and boost kids' mental and language development. Existing systems are generally designed to provide vi
Externí odkaz:
http://arxiv.org/abs/2112.00331
Autor:
Nikolić, Predrag
Publikováno v:
Phys. Rev. B 104, 024414 (2021)
We analyze the decay of spin waves into Stoner excitations in magnetic Weyl semimetals. The lifetime of a mode is found to have a universal dependence on its frequency and momentum, and on a few parameters that characterize the relativistic Weyl spec
Externí odkaz:
http://arxiv.org/abs/2103.03885
Autor:
Nikolić, Predrag
Publikováno v:
Phys. Rev. B 103, 155151 (2021)
We derive the effective interactions between local magnetic moments which are mediated by Weyl electrons in magnetic topological semimetals. The resulting spin dynamics is governed by the induced Heisenberg, Kitaev and Dzyaloshinskii-Moriya (DM) inte
Externí odkaz:
http://arxiv.org/abs/2101.06274
Autor:
Gaudet, Jonathan, Yang, Hung-Yu, Baidya, Santu, Lu, Baozhu, Xu, Guangyong, Zhao, Yang, Rodriguez, Jose A., Hoffmann, Christina M., Graf, David E., Torchinsky, Darius H., Nikolić, Predrag, Vanderbilt, David, Tafti, Fazel, Broholm, Collin L.
Emergent relativistic quasiparticles in Weyl semimetals are the source of exotic electronic properties such as surface Fermi arcs, the anomalous Hall effect, and negative magnetoresistance, all observed in real materials. Whereas these phenomena high
Externí odkaz:
http://arxiv.org/abs/2012.12970