Results 51 to 60 of about 1,350,341 (295)
Quantum signatures of strange attractors
Chaos: An Interdisciplinary Journal of Nonlinear ScienceIn classical mechanics, driven systems with dissipation often exhibit complex, fractal dynamics known as strange attractors. This paper addresses the fundamental question of how such structures manifest in the quantum realm. We investigate the quantum Duffing oscillator, a paradigmatic chaotic system, using the Caldirola–Kanai framework, where ...
Bence Dárdai, Gábor Vattay
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Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
X-ray Absorption Spectral Signature of Quantum Nuclei in Liquid Water [PDF]
, 2018 Based on electron-hole excitation theory, we investigate the X-ray absorption spectral signature of nuclear quantum effect in liquid water, whose molecular structure is simulated by path-integral molecular dynamics using the MB-pol model ...
Lixin, Zheng +5 more
core +1 more source
Entanglement as a signature of quantum chaos
Physical Review E, 2004 8 pages, 8 ...
Wang, Xiaoguang +3 more
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Quantum Signatures of Breather-Breather Interactions [PDF]
Physical Review Letters, 2004 4 pages, 4 ...
J. DORIGNAC +3 more
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FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Signatures of Incoherence in a Quantum Information Processor [PDF]
Quantum Information Processing, 2007 Incoherent noise is manifest in measurements of expectation values when the underlying ensemble evolves under a classical distribution of unitary processes. While many incoherent processes appear decoherent, there are important differences. The distribution functions underlying incoherent processes are either static or slowly varying with respect to ...
Michael K. Henry +10 more
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Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes
FEBS Open Bio, EarlyView.Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard +12 more
wiley +1 more source
Twin-Field Quantum Digital Signature with Fully Discrete Phase Randomization
, 2022 Quantum digital signatures (QDS) are able to verify the authenticity and integrity of a message in modern communication. However, the current QDS protocols are restricted by the fundamental rate-loss bound and the secure signature distance cannot be ...
Xie, Jiahui +9 more
core +1 more source
Optical Signatures of Quantum Skyrmions
Physical Review LettersMagnets have recently emerged as promising candidates for quantum computing, particularly using topologically-protected nanoscale spin textures. While the quantum dynamics of such spin textures has been theoretically studied, direct experimental evidence of their non-classical behavior remains an open challenge.
Sharma, Sanchar, Psaroudaki, Christina
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