Results 51 to 60 of about 1,611 (136)

Direct estimation of the density of states for fermionic systems

Physical Review Research
Simulating time evolution is one of the most natural applications of quantum computers and is thus one of the most promising prospects for achieving practical quantum advantage.
Matthew L. Goh, Bálint Koczor
doaj   +1 more source

Observable Degrees of Freedom in Programmable Electromagnetic Environments

Mathematics
Programmable electromagnetic environments, including reconfigurable intelligent surface (RIS)-assisted systems, are often described in terms of physical or controllable degrees of freedom.
Carlos Bousoño-Calzón
doaj   +1 more source

Invariant Subspace Topologies and Canonical Decompositions

This paper investigates the intricate relationship between the topological properties of the set of invariant subspaces of a linear operator and the operator's canonical decomposition. The set of all k-dimensional subspaces of a vector space forms a Grassmann manifold, which we endow with a natural topology induced by metrics such as the gap metric. We
openaire   +2 more sources

On exceptional QP-manifolds

Journal of High Energy Physics
The connection between two recent descriptions of tensor hierarchies — namely, infinity-enhanced Leibniz algebroids, given by Bonezzi & Hohm and Lavau & Palmkvist, and the p-brane QP-manifolds constructed by Arvanitakis — is made precise. This is done by
David Osten
doaj   +1 more source

Collective Subspace and Canonical System with Constraints [PDF]

Progress of Theoretical Physics, 1980
openaire   +2 more sources

Canonical forms for pairs of matrices associated with Lagrangian and Dirac subspaces

We derive the canonical forms for a pair of $n\times n$ complex matrices $(E,Q)$ under transformations $(E,Q) \rightarrow (UEV,U^{-T}QV)$, and $(E,Q) \rightarrow (UEV,U^{-*}QV)$, where $U$ and $V$ are nonsingular complex matrices. We, in particular, consider the special cases of $E^TQ$ and $E^*Q$ being (skew-)symmetric and (skew-)Hermitian ...
Das, Sweta, Dmytryshyn, Andrii, Mehrmann, Volker   +2 more
openaire   +2 more sources

Multimodal subspace independent vector analysis effectively captures latent relationships between brain structure and function. [PDF]

Imaging Neurosci (Camb)
Li X, Kochunov P, Adali T, Silva RF, Calhoun VD.   +4 more
europepmc   +1 more source

Intrinsic Quantization of Linear Hamiltonian Systems. [PDF]

Entropy (Basel)
Accardi L, Pandiscia C.
europepmc   +1 more source

Independence and coherence in temporal sequence computation across the fronto-parietal network. [PDF]

Nat Commun
Imamura H, Imamura F, Hira R, Isomura Y, Hira R.   +4 more
europepmc   +1 more source

Selective direct influence of motor cortex on limb muscle activity during naturalistic climbing in mice. [PDF]

Nat Neurosci
Koh N, Ma Z, Sarup A, Kristl AC, Agrios M, Young M, Miri A.   +6 more
europepmc   +1 more source