Results 81 to 90 of about 6,416 (187)
Physica ScriptaAbstract Quantum decoherence refers to the phenomenon when the interaction of a quantum system with its environment results in the degradation of quantum coherence. Decoherence is considered to be the most popular mechanism responsible for the emergence of classicality from quantum mechanics.
Mohd Shoaib Qureshi, Tabish Qureshi
openaire +2 more sources
Controlling Collective Quasiparticle Dynamics Beyond Decoherence in Topological Interfaces
Laser &Photonics Reviews, EarlyView.Gold nanoparticles placed above a deformed honeycomb plasmonic crystal couple to a chiral topological interface mode. The pseudospin‐split bands ψ+/ ψ− encode spin‐momentum locking, so emitters radiate directionally along the domain wall and share a common phase.
Fatemeh Davoodi
wiley +1 more source
Controlling the Center of Mass Motion of Levitated Particles Using Structured Wavefronts
Laser &Photonics Reviews, EarlyView.Optically levitated particles have great potential for quantum‐enhanced sensing. Precise control of the trapping beam is crucial to improve the stability and confinement of these systems. Here, we study how structured wavefronts can be used to control the center‐of‐mass motion of levitated particles, enhancing trap stiffness and enabling stable ...
Shah Jee Rahman +7 more
wiley +1 more source
Robust and Scalable Quantum Repeaters Using Machine Learning
InformationQuantum repeaters are integral systems to quantum computing and quantum communication as they allow the transfer of information between qubits, particularly over long distances.
Diego Fuentealba +3 more
doaj +1 more source
Focusing, collimation, and beam expansion of high‐energy X‐rays with diamond refractive lenses
Journal of Synchrotron Radiation, EarlyView.The effectiveness and versatility of diamond refractive optics for high‐energy X‐rays (> 40 keV) is presented in applications to focusing, collimation, and beam expansion, along with design and implementation details.Diamond is extremely well suited for synchrotron X‐ray refractive optics.
Sarvjit D. Shastri, Sergey Antipov
wiley +1 more source
Entropy production in open quantum systems: exactly solvable qubit models
Condensed Matter Physics, 2012 We present analytical results for the time-dependent information entropy in exactly solvable two-state (qubit) models. The first model describes dephasing (decoherence) in a qubit coupled to a bath of harmonic oscillators. The entropy production for this
V.G. Morozov, G. Röpke
doaj +1 more source
AUGURAL TERRITORIES: On the Prophetic Organizing of the Mid‐range
International Journal of Urban and Regional Research, EarlyView.Abstract In this article I introduce the concept of augural territories to theorize the urbanism that emerged during pandemic lockdowns. I draw on ethnographic research in Madrid to examine how community‐based responses—including mutual aid networks, food pantries and neighbourhood associations—disrupted the spatial and temporal logics of territorial ...
Alberto Corsín Jiménez
wiley +1 more source
Dynamics of decoherence in a noisy driven environment
Scientific ReportsWe analyze the decoherence dynamics of a central spin coupled to a spin chain with a time-dependent noisy magnetic field, focusing on how noise influences the system’s decoherence.
R. Jafari +3 more
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Verification of the quantum nonequilibrium work relation in the presence of decoherence
New Journal of Physics, 2018 Although nonequilibrium work and fluctuation relations have been studied in detail within classical statistical physics, extending these results to open quantum systems has proven to be conceptually difficult. For systems that undergo decoherence but not
Andrew Smith +8 more
doaj +1 more source
Wave Tracing: Generalizing The Path Integral To Wave Optics
Computer Graphics Forum, EarlyView.Abstract Modeling the wave nature of light and the propagation and diffraction of electromagnetic fields is crucial for the accurate simulation of many phenomena, yet wave simulations are significantly more computationally complex than classical ray‐based models.
Shlomi Steinberg, Matt Pharr
wiley +1 more source