Results 1 to 10 of about 514,959 (282)

Revealing the Origin and Nature of the Buried Metal‐Substrate Interface Layer in Ta/Sapphire Superconducting Films

Advanced Science, EarlyView.
The origin and nature of metal‐substrate interface layer in Ta/sapphire‐based superconducting films is investigated using synchrotron X‐ray reflectivity and scanning transmission electron microscopy. An intermixing layer, ≈0.65 nm thick containing Al, O, and Ta atoms, is identified at the interface.
Aswin k. Anbalagan, Rebecca Cummings, Chenyu Zhou, Junsik Mun, Vesna Stanic, Jean Jordan‐Sweet, Juntao Yao, Kim Kisslinger, Conan Weiland, Dmytro Nykypanchuk, Steven L. Hulbert, Qiang Li, Yimei Zhu, Mingzhao Liu, Peter V. Sushko, Andrew L. Walter, Andi M. Barbour   +16 more
wiley   +1 more source

Offshell quantum electrodynamics

Journal of Physics: Conference Series, 2013
More than twenty years have passed since the threads of the `proper time formalism' in covariant classical and quantum mechanics were brought together to construct a canonical formalism for the relativistic mechanics of many particles. Drawing on the work of Fock, Stueckelberg, Nambu, Schwinger, and Feynman, the formalism was raised from the status of ...
Lawrence P. Horwitz, Lawrence P. Horwitz, Martin Land   +2 more
openaire   +3 more sources

Emergence of Supersymmetric Quantum Electrodynamics [PDF]

Physical Review Letters, 2017
Supersymmetric (SUSY) gauge theories such as the Minimal Supersymmetric Standard Model play a fundamental role in modern particle physics, but have not been verified so far in nature. Here, we show that a SUSY gauge theory with dynamical gauge bosons and fermionic gauginos emerges naturally at the pair-density-wave (PDW) quantum phase transition on the
Hong Yao, Joseph Maciejko, Joseph Maciejko, Chien-Hung Lin, Shao-Kai Jian   +4 more
openaire   +4 more sources

Tunable Polariton Rabi Oscillation in Phase‐Changing Perovskite Microcavities

Advanced Science, EarlyView.
This work demonstrated the tunable Rabi oscillation of exciton‐polaritons in MAPbBr3 perovskites due to the emergence of ferroelectricity during the crystallographic phase transition. Both the Rabi oscillation and exciton oscillator strength exhibit an unusual temperature dependence that is related to the emergence of ferroelectricity in the tetragonal
Hyeon‐Seo Choi, Minjee Ko, Taejin Lee, Jin‐Woo Jung, Young‐Jun Lee, Hyeonjong Jeong, Youngjae Kim, Dongha Kim, Jinhee Heo, Shinbuhm Lee, JaeDong Lee, Chang‐Hee Cho   +11 more
wiley   +1 more source

Quantum Electrodynamics at Large Distances II: Nature of the Dominant Singularities

, 1995
Accurate calculations of macroscopic and mesoscopic properties in quantum electrodynamics require careful treatment of infrared divergences: standard treatments introduce spurious large-distances effects.
C. Chandler, D. Iagolnitzer, D. Iagolnitzer, H. P. Stapp, H. P. Stapp, H. P. Stapp, Henry P. Stapp, J. Coster, N. Nakanishi, R. J. Eden, T. Kawai, T. Kawai, Takahiro Kawai   +12 more
core   +1 more source

Quantum quincunx in cavity quantum electrodynamics [PDF]

Physical Review A, 2003
We introduce the quantum quincunx, which physically demonstrates the quantum walk and is analogous to Galton's quincunx for demonstrating the random walk. In contradistinction to the theoretical studies of quantum walks over orthogonal lattice states, we introduce quantum walks over nonorthogonal lattice states (specifically, coherent states on a ...
Sanders, BC, Bartlett, SD, Tregenna, B, Knight, PL   +3 more
openaire   +4 more sources

Hyperbolic Topological Quantum Sources

Advanced Science, EarlyView.
In this work, we present the experimental realization of hyperbolic topological quantum sources on silicon chips, which only require fewer resources to achieve a higher brightness. It shows a high utilization efficiency and a strong robustness. Abstract Robust Integrable Quantum Optical Sources, Constructed by Topological Boundary States, Are Crucial ...
Lu He, Lei Huang, Weixuan Zhang, Dongning Liu, Huizhen Zhang, Xue Feng, Fang Liu, Kaiyu Cui, Yidong Huang, Wei Zhang, Xiangdong Zhang   +10 more
wiley   +1 more source

Quantum-Optical Spectrometry in Relativistic Laser–Plasma Interactions Using the High-Harmonic Generation Process: A Proposal

Photonics, 2021
Quantum-optical spectrometry is a recently developed shot-to-shot photon correlation-based method, namely using a quantum spectrometer (QS), that has been used to reveal the quantum optical nature of intense laser–matter interactions and connect the ...
Theocharis Lamprou, Rodrigo Lopez-Martens, Stefan Haessler, Ioannis Liontos, Subhendu Kahaly, Javier Rivera-Dean, Philipp Stammer, Emilio Pisanty, Marcelo F. Ciappina, Maciej Lewenstein, Paraskevas Tzallas   +10 more
doaj   +1 more source

Dispersion forces in macroscopic quantum electrodynamics

, 2007
The description of dispersion forces within the framework of macroscopic quantum electrodynamics in linear, dispersing, and absorbing media combines the benefits of approaches based on normal-mode techniques of standard quantum electrodynamics and ...
Buhmann, Stefan Yoshi, Welsch, Dirk-Gunnar   +1 more
core   +1 more source

Spin‐Selective Catalysts for Oxygen‐Involved Electrocatalysis

Advanced Energy and Sustainability Research, EarlyView.
The sluggish kinetics of oxygen‐involved electrocatalysis hinders the efficiency of the energy conversion process, which can be promoted by using spin‐polarized materials to conduct spin‐selective electron transfer. This review delivers a thorough and timely overview of state‐of‐the‐art spin‐selective catalysts, aiming to offer a clear route for ...
Haifan Li, Quan Quan, Chun‐Yuen Wong, Johnny C. Ho   +3 more
wiley   +1 more source