Results 81 to 90 of about 97,313 (257)

Photon Number Coherence in Quantum Dot‐Cavity Systems can be Enhanced by Phonons

Advanced Quantum Technologies, EarlyView.
Photon number coherence (PNC) is important for quantum cryptography. Because of that, the PNC within a quantum dot‐cavity system is investigated theoretically. Phonons, which interact with the quantum dot, surprisingly do not necessarily decrease PNC. It is demonstrated that it is possible to optimize other figures of merit without significant penalty ...
Paul C. A. Hagen, Mathieu Bozzio, Moritz Cygorek, Doris E. Reiter, Vollrath M. Axt   +4 more
wiley   +1 more source

Vertex rings and their Pierce bundles

, 2017
In part I we introduce vertex rings, which bear the same relation to vertex algebras (or VOAs) as commutative, associative rings do to commutative, associative algebras over the complex numbers.
Mason, Geoffrey
core   +1 more source

A commutativity and finiteness condition for rings [PDF]

Archiv der Mathematik, 2003
We show that a ring with only finitely many noncentral subrings must be either commutative or finite.
Howard E. Bell, Abraham A. Klein
openaire   +3 more sources

Characterization of rings with planar, toroidal or projective planar prime ideal sum graphs

AKCE International Journal of Graphs and Combinatorics
Let R be a commutative ring with unity. The prime ideal sum graph [Formula: see text] of the ring R is the simple undirected graph whose vertex set is the set of all nonzero proper ideals of R and two distinct vertices I and J are adjacent if and only if
Praveen Mathil, Barkha Baloda, Jitender Kumar, A. Somasundaram   +3 more
doaj   +1 more source

An algorithm for generating generalized splines on graphs such as complete graphs, complete bipartite graphs and hypercubes

AKCE International Journal of Graphs and Combinatorics, 2020
An edge labeled graph is a graph whose edges are labeled with non-zero ideals of a commutative ring . A Generalized Spline on an edge labeled graph is a vertex labeling of by elements of the ring , such that the difference between any two adjacent vertex
Radha Madhavi Duggaraju, Lipika Mazumdar
doaj   +1 more source

Extending low‐temperature sintering technique to large‐sized whole‐wafer power semi‐conductor devices

High Voltage, EarlyView.
Abstract With the enormous growth in the capacity of electrical equipment, power semi‐conductor devices are developing rapidly towards larger size and higher capacity. To suppress the thermal resistance and achieve efficient heat dissipation, the authors focus on developing a low‐temperature sintering technique for wafer‐level high‐power semi‐conductor
Chen Yang, Chunpin Ren, Chenxiao Huang, Qiao Qiao, Hao Zhang, Jiapeng Liu, Yanzhong Tian, Jianhong Pan, Xiaozhao Li, Xiaoguang Wei, Lei Liu, Jinpeng Wu, Guisheng Zou, Rong Zeng   +13 more
wiley   +1 more source

Commutativity properties of Quinn spectra [PDF]

, 2013
We give a simple sufficient condition for Quinn's "bordism-type" spectra to be weakly equivalent to commutative symmetric ring spectra. We also show that the symmetric signature is (up to weak equivalence) a monoidal transformation between symmetric ...
E. Mcclure, Gerd Laures, James
core  

Stratifying derived categories of cochains on certain spaces

, 2011
In recent years, Benson, Iyengar and Krause have developed a theory of stratification for compactly generated triangulated categories with an action of a graded commutative Noetherian ring.
A. Lazarev, A. Neeman, A.K. Bousfield, B. Shipley, D. Benson, D. Benson, D. Benson, J.P.C. Greenlees, M.J. Hopkins, Shoham Shamir, V.M. Buchstaber, W. Bruns, W.G. Dwyer, W.G. Dwyer, W.G. Dwyer, W.G. Dwyer, Y. Félix   +16 more
core   +1 more source

Commutators and Anti-Commutators of Idempotents in Rings

, 2018
We show that a ring $\,R\,$ has two idempotents $\,e,e'\,$ with an invertible commutator $\,ee'-e'e\,$ if and only if $\,R \cong {\mathbb M}_2(S)\,$ for a ring $\,S\,$ in which $\,1\,$ is a sum of two units. In this case, the "anti-commutator" $\,ee'+e'e\,$ is automatically invertible, so we study also the broader class of rings having such an ...
Dinesh Khurana, Tsit Yuen Lam
openaire   +3 more sources

In The Graph Based on a Given Ideal of a Ring

Zanco Journal of Pure and Applied Sciences, 2019
In this paper we introduce a new kind of graph associated with a commutative ring with identity, and we discover some of its characterizations and properties. Let R be a commutative ring with identity and K be a non-trivial ideal of R.
friad husen abdulqadr
doaj   +1 more source