Quantum PhysicsIn analogy with crystalline solids around us, Wilczek recently proposed the idea of "time crystals" as phases that spontaneously break the continuous time translation into a discrete subgroup. The proposal stimulated further studies and vigorous debates whether it can be realized in a ...
Electron Microscopy Laboratory, School of Physics, Peking University, Beijing, 100871, China Peng Gao, Zhangyuan Zhang, Mingqiang Li, Xiumei Ma, Shulin Chen, Jingmin Zhang & Dapeng Yu Collaborative Innovation Centre of Quantum Matter, Beijing, 100871, China Peng Gao, Kaihui Liu, En-Ge Wang &...
In the very recent past, similar properties are observed in a new class of topological quantum phase in the Weyl semimetals (WSMs)8; the so called 3D analogues of Graphene9. While WSMs are not gapped in bulk, they have gapless nodes (band-touching points) distributed in three dimensional (...
Time-resolved fluorescenceFRETThe present article deals with the interaction of octadecylamine (ODA) capped cadmium selenide quantum dots (CdSe QDs) and two ferroelectric liquid crystals (FLCs) having different values of spontaneous polarization (Ps). The pristine FLCs and FLC-QDs composites have ...
Quantum yields of active oxidative species formed on TiO2 photocatalyst. J. Photochem. Photobiol. A Chem. 2000, 134, 139–142. [Google Scholar] [CrossRef] Hayyan, M.; Hashim, M.A.; AlNashef, I.M. Superoxide ion: Generation and chemical implications. Chem. Rev. 2016, 116, 3029–3085...
where P is the probability that a quantum mechanical particle will return to the starting point (the wave functions of both time-reversed paths constructively interfere with each other), D = vF2τ/d is the diffusion constant, τ is the elastic scattering time and d is the dimension. The re...
Resistivity measurements at ambient pressure (AP) were performed with the Physical Property Measurement System (PPMS-9T, Quantum Design, Beijing, China). In the low-pressure range of up to 2.35 GPa, temperature-dependent resistivity, ρ(T), was measured with a self-clamped piston-cylinder cell...