Results 101 to 110 of about 2,059,050 (339)

Efficient quantum signature protocol of classical messages

open access: yesTongxin xuebao, 2007
An efficient quantum signature protocol of classical messages which was based on quantum one-time pad and quantum key distribution was presented.The classical messages of any length could be encoded into the quantum infor-mation of determinate length ...
WANG Jian, ZHANG Quan, TANG Chao-jing
doaj   +2 more sources

Spinor Algebras and Extended Superconformal Algebras [PDF]

open access: yes, 2001
We consider supersymmetry algebras in arbitrary spacetime dimension and signature. Minimal and maximal superalgebras are given for single and extended supersymmetry.
Lledo, M. A., Varadarajan, V. S.
core   +3 more sources

Generalized Quantum-Assisted Digital Signature

open access: yesIEEE Transactions on Quantum Engineering
This paper introduces Generalized Quantum-assisted Digital Signature (GQaDS), an improved version of a recently proposed scheme whose information theoretic security is inherited by adopting QKD keys for digital signature purposes. Its security against forging is computed considering a trial-and-error approach taken by the malicious forger and GQaDS ...
Alberto Tarable   +4 more
openaire   +2 more sources

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

open access: yesAdvanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri   +6 more
wiley   +1 more source

Experimental Quantum Simulation of Entanglement in Many-body Systems

open access: yes, 2011
We employ a nuclear magnetic resonance (NMR) quantum information processor to simulate the ground state of an XXZ spin chain and measure its NMR analog of entanglement, or pseudo-entanglement.
Jingfu Zhang   +5 more
core   +1 more source

On the origin of the difference between time and space [PDF]

open access: yes, 2004
We suggest that the difference between time and space is due to spontaneous symmetry breaking. In a theory with spinors the signature of the metric is related to the signature of the Lorentz-group.
B. S. De Witt   +8 more
core   +1 more source

Quantum Path Signatures

open access: yes
We elucidate physical aspects of path signatures by formulating randomised path developments within the framework of matrix models in quantum field theory. Using tools from physics, we introduce a new family of randomised path developments and derive corresponding loop equations.
Crew, Samuel   +4 more
openaire   +2 more sources

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen   +4 more
wiley   +1 more source

An NTRU-like Message Recoverable Signature Algorithm

open access: yesMathematics
An important feature of Nyberg-Rueppel type digital signature algorithms is message recovery, this signature algorithm can recover the original information from the signature directly by the verifier in the verification phase after signing the message ...
Tingle Shen, Li Miao, Bin Hua, Shuai Li
doaj   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu   +3 more
wiley   +1 more source

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