Results 161 to 170 of about 1,995,098 (263)

Quantifying Quantum Coherence Using Machine Learning Methods

Applied Sciences
Quantum coherence is a crucial resource in numerous quantum processing tasks. The robustness of coherence provides an operational measure of quantum coherence, which can be calculated for various states using semidefinite programming.
Lin Zhang, Liang Chen, Qiliang He, Yeqi Zhang   +3 more
doaj   +1 more source

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

Quantum thermodynamics, quantum correlations and quantum coherence in accelerating Unruh–DeWitt detectors in both steady and dynamical state

European Physical Journal C: Particles and Fields
We investigate the interplay between quantum thermodynamics, quantum correlations, and quantum coherence within the framework of the Unruh–DeWitt (UdW) detector model.
Omar Bachain, Mohamed Amazioug, Rachid Ahl Laamara, Kottakkaran Sooppy Nisar, Mohammed Zakarya, Gamal M. Ismail, Abdel-Haleem Abdel-Aty   +6 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Hawking effect on the universal relationship between quantum steering and the first-order coherence in Schwarzschild spacetime

Physics Letters B
Quantum steering and coherence are fundamental resources for quantum computation and quantum communication. Understanding their interplay under different environments is crucial for optimizing quantum information tasks.
Xiao Wang, Xiao-Gang Fan, Dong Wang, Liu Ye   +3 more
doaj   +1 more source

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source

Week-long-lifetime microwave spectral holes in an erbium-doped scheelite crystal at millikelvin temperature

Nature Communications
Rare-earth-ions (REI) doped crystals have remarkable optical and spin properties characterized by narrow homogeneous linewidths, which can be studied despite the large inhomogeneous broadening of the ensemble line through spectral hole burning (SHB ...
Zhiren Wang, Sen Lin, Marianne Le Dantec, Miloš Rančić, Philippe Goldner, Sylvain Bertaina, Thierry Chaneliere, Renbao Liu, Daniel Esteve, Denis Vion, Emmanuel Flurin, Patrice Bertet   +11 more
doaj   +1 more source

Optical Coherence and Quantum Optics

, 1995
L. Mandel, E. Wolf
semanticscholar   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

Advanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner, Enis Oğuzhan Eren, Elif Begüm Yılmaz, Jiyong Kim, Ernesto Scoppola, Alexandros Vasileiadis, Nadezda V. Tarakina, Markus Antonietti, Paolo Giusto, Evgeny Senokos   +9 more
wiley   +1 more source

Converting Entanglement into Ensemble Basis-Free Coherence

Entropy
The resource theory of coherence addresses the extent to which quantum properties are present in a given quantum system. While coherence has been extensively studied for individual quantum states, measures of coherence for ensembles of quantum states ...
Aleksei Kodukhov
doaj   +1 more source