Results 71 to 80 of about 25,650 (293)

A Secure and Privacy-Preserving Signature Protocol Using Quantum Teleportation in Metaverse Environment

open access: yesIEEE Access
The burgeoning concept of the metaverse as an interconnected virtual space represents the forefront of the next-generation internet. Quantum teleportation, known for its prowess in ensuring secure and reliable communications, stands poised to ...
Pankaj Kumar   +6 more
doaj   +1 more source

Why special relativity should not be a template for a fundamental reformulation of quantum mechanics [PDF]

open access: yes, 2005
In a comparison of the principles of special relativity and of quantum mechanics, the former theory is marked by its relative economy and apparent explanatory simplicity. A number of theorists have thus been led to search for a small number of postulates
Timpson, Christopher G.   +1 more
core  

Superabsorption of light via quantum engineering

open access: yes, 2014
Almost 60 years ago Dicke introduced the term superradiance to describe a signature quantum effect: N atoms can collectively emit light at a rate proportional to N-2.
Benjamin, SC   +19 more
core   +1 more source

Signatures of Quantum Mechanics in Chaotic Systems [PDF]

open access: yesEntropy, 2019
We examine the quantum-classical correspondence from a classical perspective by discussing the potential for chaotic systems to support behaviors normally associated with quantum mechanical systems. Our main analytical tool is a chaotic system’s set of cupolets, which are highly-accurate stabilizations of its unstable periodic orbits. Our discussion is
Kevin M. Short, Matthew A. Morena
openaire   +4 more sources

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

open access: yesAdvanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon   +7 more
wiley   +1 more source

A secure and efficient identity-based quantum signature scheme

open access: yesAIP Advances
In recent years, identity-based quantum signature protocols have received much attention due to their unique advantages. Based on Bell states, we propose an efficient identity-based quantum signature scheme.
Bai Liu, Pengda Zhu, Kuikui Guo
doaj   +1 more source

Novel One Time Signatures (NOTS): A Compact Post-Quantum Digital Signature Scheme

open access: yesIEEE Access, 2020
The future of the hash based digital signature schemes appears to be very bright in the upcoming quantum era because of the quantum threats to the number theory based digital signature schemes.
Furqan Shahid   +3 more
doaj   +1 more source

Signatures of Homoclinic Motion in Quantum Chaos [PDF]

open access: yesPhysical Review Letters, 2005
Homoclinic motion plays a key role in the organization of classical chaos in Hamiltonian systems. In this Letter, we show that it also imprints a clear signature in the corresponding quantum spectra. By numerically studying the fluctuations of the widths of wavefunctions localized along periodic orbits we reveal the existence of an oscillatory behavior,
Wisniacki, Diego Ariel   +3 more
openaire   +4 more sources

Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells

open access: yesAdvanced Functional Materials, EarlyView.
Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov   +10 more
wiley   +1 more source

A Secure Cryptocurrency Scheme Based on Post-Quantum Blockchain

open access: yesIEEE Access, 2018
Nowadays, blockchain has become one of the most cutting-edge technologies, which has been widely concerned and researched. However, the quantum computing attack seriously threatens the security of blockchain, and related research is still less. Targeting
Yu-Long Gao   +5 more
doaj   +1 more source

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