Results 61 to 70 of about 185,900 (293)
Pin TQFT and Grassmann integral
Journal of High Energy Physics, 2019 We discuss a recipe to produce a lattice construction of fermionic phases of matter on unoriented manifolds. This is performed by extending the construction of spin TQFT via the Grassmann integral proposed by Gaiotto and Kapustin, to the unoriented pin ±
Ryohei Kobayashi
doaj +1 more source
Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires
Advanced Functional Materials, EarlyView.In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton +11 more
wiley +1 more source
Controlling topological phases of matter with quantum light
Communications Physics, 2022 Light-matter interactions can be used to observe non-equilibrium phases and there has been particular interest in non-trivial topological states of matter such as Floquet-engineered topological band structures. Here, the authors theoretically investigate
Olesia Dmytruk, Marco Schirò
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The ground state of general relativity, topological theories and dark matter [PDF]
Classical and Quantum Gravity, 2007 We suggest a limit of Einstein equations incorporating the state $g_{ }=0$ as a solution. The large scale behavior of this theory has interesting properties. For a spherical source, the velocity profile for circular motions is of the form observed in galaxies (approximately flat).
openaire +3 more sources
Advanced Functional Materials, EarlyView.From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang +8 more
wiley +1 more source
Entanglement entropy of topological orders with boundaries
Journal of High Energy Physics, 2018 In this paper we explore how non trivial boundary conditions could influence the entanglement entropy in a topological order in 2+1 dimensions. Specifically we consider the special class of topological orders describable by the quantum double.
Chaoyi Chen +3 more
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, 2016 Topological states of matter, as quantum Hall systems or topological insulators, cannot be distinguished from ordinary matter by local measurements in the bulk of the material.
Genske, Maximilian +5 more
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Topological quantum states of matter in iron-based superconductors: from concept to material realization [PDF]
National Science Review, 2018 AbstractWe review recent progress in the exploration of topological quantum states of matter in iron-based superconductors. In particular, we focus on the non-trivial topology existing in the band structures and superconducting states of iron’s 3d orbitals. The basic concepts, models, materials and experimental results are reviewed.
Hao, Ning, Hu, Jiangping
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Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures
Advanced Functional Materials, EarlyView.3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina +11 more
wiley +1 more source