Results 1 to 10 of about 1,159,790 (329)

Fermi surface topology and signature of surface Dirac nodes in LaBi [PDF]

Scientific Reports, 2017
Novel topological state of matter is one of the rapidly growing fields in condensed matter physics research in recent times. While these materials are fascinating from the aspect of fundamental physics of relativistic particles, their exotic transport ...
Ratnadwip Singha, Biswarup Satpati, Prabhat Mandal   +2 more
doaj   +5 more sources

Dynamical determination of the metric signature in spacetime of non-trivial topology [PDF]

, 1994
The formalism of Greensite for treating the spacetime signature as a dynamical degree of freedom induced by quantum fields is considered for spacetimes with nontrivial topology of the kind ${\bf R}^{D-1} \times {\bf T}^1$, for varying $D$.
E. Elizalde, Sergei D. Odintsov, August Romeo   +2 more
core   +7 more sources

Topology and signature changes in braneworlds [PDF]

, 2004
It has been believed that topology and signature change of the universe can only happen accompanied by singularities, in classical, or instantons, in quantum, gravity.
Gary W. Gibbons, Akihiro Ishibashi, Gary W. Gibbons, Akihiro Ishibashi   +3 more
core   +5 more sources

Dimensionality, topology, energy, the cosmological constant and signature change [PDF]

, 1996
Using the concept of real tunneling configurations (classical signature change) and nucleation energy, we explore the consequences of an alternative minimization procedure for the Euclidean action in multiple-dimensional quantum cosmology.
Franz Embacher, Franz Embacher
core   +6 more sources

Discovery of higher-order topological insulators using the spin Hall conductivity as a topology signature [PDF]

npj Computational Materials, 2021
The discovery and realization of topological insulators, a phase of matter which hosts metallic boundary states when the d-dimension insulating bulk is confined to (d − 1)-dimensions, led to several potential applications.
Marcio Costa, Gabriel R. Schleder, Carlos Mera Acosta, Antonio C. M. Padilha, Frank Cerasoli, Marco Buongiorno Nardelli, Adalberto Fazzio   +6 more
doaj   +2 more sources

Relationship between diffraction peak, network topology, and amorphous-forming ability in silicon and silica

Scientific Reports, 2021
The network topology in disordered materials is an important structural descriptor for understanding the nature of disorder that is usually hidden in pairwise correlations.
Shinji Kohara, Motoki Shiga, Yohei Onodera, Hirokazu Masai, Akihiko Hirata, Motohiko Murakami, Tetsuya Morishita, Koji Kimura, Kouichi Hayashi   +8 more
doaj   +2 more sources

Signature of Topological Surface Bands in Altermagnetic Weyl Semimetal CrSb. [PDF]

Nano Lett
As a special type of collinear antiferromagnetism (AFM), altermagnetism has garnered significant research interest recently. Altermagnets exhibit broken parity-time symmetry and zero net magnetization, leading to substantial band splitting in the ...
Lu W, Feng S, Wang Y, Chen D, Lin Z, Liang X, Liu S, Feng W, Yamagami K, Liu J, Felser C, Wu Q, Ma J.   +12 more
europepmc   +3 more sources

Entanglement spectrum crossings reveal non-Hermitian dynamical topology [PDF]

Physical Review Research, 2021
The development of non-Hermitian topological band theory has led to observations of novel topological phenomena in effectively classical, driven, and dissipative systems. However, for open quantum many-body systems, the absence of a ground state presents
Sharareh Sayyad, Jinlong Yu, Adolfo G. Grushin, Lukas M. Sieberer   +3 more
doaj   +2 more sources

Transport signatures of Fermi surface topology change in BiTeI [PDF]

, 2015
We report a quantum magnetotransport signature of a change in Fermi surface topology in the Rashba semiconductor BiTeI with systematic tuning of the Fermi level $E_F$.
Linda Ye, J. G. Checkelsky, Fumitaka Kagawa, Yoshinori Tokura   +3 more
core   +7 more sources

Inter-chromosomal contacts demarcate genome topology along a spatial gradient [PDF]

Nature Communications
Non-homologous chromosomal contacts (NHCCs) between different chromosomes participate considerably in gene and genome regulation. Due to analytical challenges, NHCCs are currently considered as singular, stochastic events, and their extent and ...
Milad Mokhtaridoost, Jordan J. Chalmers, Marzieh Soleimanpoor, Brandon J. McMurray, Daniella F. Lato, Son C. Nguyen, Viktoria Musienko, Joshua O. Nash, Sergio Espeso-Gil, Sameen Ahmed, Kate Delfosse, Jared W. L. Browning, A. Rasim Barutcu, Michael D. Wilson, Thomas Liehr, Adam Shlien, Samin Aref, Eric F. Joyce, Anja Weise, Philipp G. Maass   +19 more
doaj   +2 more sources