Results 21 to 30 of about 7,248 (254)
Statistical Lorentzian geometry and the closeness of Lorentzian manifolds [PDF]
Journal of Mathematical Physics, 2000 I introduce a family of closeness functions between causal Lorentzian geometries of finite volume and arbitrary underlying topology. When points are randomly scattered in a Lorentzian manifold, with uniform density according to the volume element, some information on the topology and metric is encoded in the partial order that the causal structure ...
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Suppression of the radiation squeezing in interacting quantum Hall edge channels
New Journal of Physics, 2021 We study the quantum fluctuations of the two quadratures of the emitted electromagnetic radiation generated by a quantum Hall device in a quantum point contact geometry. In particular, we focus our attention on the role played by the unavoidable electron–
G Rebora, D Ferraro, M Sassetti
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Invariant Submanifolds of a Lorentzian β-Kenmotsu Manifold
AmesiaIn this paper we have investigated invariant submanifolds of Lorentzian β-Kenmotsu manifolds and obtained the necessary and sufficient conditions for total geodesic submanifolds of Lorentzian β-Kenmotsu manifolds.
Tuğba Mert, Mehmet Atçeken
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Wormhole inspired by non-commutative geometry
Physics Letters B, 2015 In the present Letter we search for a new wormhole solution inspired by noncommutative geometry with the additional condition of allowing conformal Killing vectors (CKV).
Farook Rahaman +3 more
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Entropy and Non-Collapse in Lorentzian Geometry
Physics Letters BIn this paper, we establish a geometric correspondence between the Lorentzian Raychaudhuri equation and Perelman’s non-collapsing theorem for the Ricci flow.
Rohit Dhormare
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Kähler metrics via Lorentzian Geometry in dimension four
Complex Manifolds, 2019 Given a semi-Riemannian 4-manifold (M, g) with two distinguished vector fields satisfying properties determined by their shear, twist and various Lie bracket relations, a family of Kähler metrics gK is constructed, defined on an open set in M, which ...
Aazami Amir Babak, Maschler Gideon
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Global Eikonal Condition for Lorentzian Distance Function in Noncommutative Geometry
Symmetry, Integrability and Geometry: Methods and Applications, 2010 Connes' noncommutative Riemannian distance formula is constructed in two steps, the first one being the construction of a path-independent geometrical functional using a global constraint on continuous functions. This paper generalizes this first step to
Nicolas Franco
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Contributions to differential geometry of spacelike curves in Lorentzian plane L2 [PDF]
Journal of Mahani Mathematical Research, 2017 In this work, first the differential equation characterizing position vector of spacelike curve is obtained in Lorentzian plane $\mathbb{L}^{2}.$ Then the special curves mentioned above are studied in Lorentzian plane $\mathbb{L}%^{2}.$ Finally ...
YASIN UNLUTURK +2 more
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Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer
Advanced Functional Materials, EarlyView.Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero +12 more
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Conformal mapping of non-Lorentzian geometries in SU(1, 2) Conformal Field Theory
Journal of High Energy PhysicsWe realize an explicit conformal mapping between the state and operator pictures in a class of (2 + 1)-dimensional non-Lorentzian field theories with SU(1, 2) × U(1) conformal symmetry.
Stefano Baiguera +3 more
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