Results 21 to 30 of about 259,006 (285)
Multiplicative Dirac structures on Lie groups [PDF]
, 2008 We study multiplicative Dirac structures on Lie groups. We show that the characteristic foliation of a multiplicative Dirac structure is given by the cosets of a normal Lie subgroup and, whenever this subgroup is closed, the leaf space inherits the ...
Bursztyn +7 more
core +4 more sources
On interconnections of infinite-dimensional port-Hamiltonian systems [PDF]
, 2004 Network modeling of complex physical systems leads to a class of nonlinear systems called port-Hamiltonian systems, which are defined with respect to a Dirac structure (a geometric structure which formalizes the power-conserving interconnection structure
Pasumarthy, Ramkrishna +1 more
core +14 more sources
Dirac structures on Hilbert spaces
International Journal of Mathematics and Mathematical Sciences, 1999 For a real Hilbert space (H,〈,〉), a subspace L⊂H⊕H is said to be a Dirac structure on H if it is maximally isotropic with respect to the pairing 〈(x,y),(x′,y′)〉+=(1/2)(〈x,y′〉+〈x′,y〉).
A. Parsian, A. Shafei Deh Abad
doaj +1 more source
Crystals, 2018 A zero-gap state with a Dirac cone type energy dispersion was discovered in an organic conductor α-(BEDT-TTF)2I3 under high hydrostatic pressures. This is the first two-dimensional (2D) zero-gap state discovered in bulk crystals with a layered structure.
Naoya Tajima
doaj +1 more source
Dirac Structures, Nonholonomic Systems and Reduction [PDF]
Reports on Mathematical Physics, 2012 39 ...
Jotz, M. M., Ratiu, T. S.
openaire +4 more sources
Data Mining for Three-Dimensional Organic Dirac Materials: Focus on Space Group 19
Scientific Reports, 2017 We combined the group theory and data mining approach within the Organic Materials Database that leads to the prediction of stable Dirac-point nodes within the electronic band structure of three-dimensional organic crystals.
R. Matthias Geilhufe +3 more
doaj +1 more source
Quantum Pumping with Adiabatically Modulated Barriers in Three-Band Pseudospin-1 Dirac–Weyl Systems
Entropy, 2019 In this work, pumped currents of the adiabatically-driven double-barrier structure based on the pseudospin-1 Dirac⁻Weyl fermions are studied. As a result of the three-band dispersion and hence the unique properties of pseudospin-1 Dirac⁻Weyl ...
Xiaomei Chen, Rui Zhu
doaj +1 more source
Biosensors, 2022 Bulk Dirac semimetal (BDS) has emerged as a “3D graphene” material for the development of optical devices in the past few years. In this study, a BDS-based tunable highly sensitive terahertz (THz) biosensor is proposed by using a Dirac semimetal/Bragg ...
Yuwen Bao +5 more
doaj +1 more source
Dirac Structures and Dixmier–Douady Bundles [PDF]
International Mathematics Research Notices, 2011 41 ...
Alekseev, A., Meinrenken, E.
openaire +3 more sources
Dirac nodal line and Rashba spin-split surface states in nonsymmorphic ZrGeTe
New Journal of Physics, 2021 Dirac semimetals (DSMs) are three-dimensional analogue to graphene with symmetry enforced bulk Dirac nodes. Among various DSMs, ZrSiS has attracted great interests recently, due to its three dimensional Dirac nodal line protected by the nonsymmorphic ...
Yun Yen +5 more
doaj +1 more source