Results 91 to 100 of about 57,344 (216)

Protecting coherence by environmental decoherence: a solvable paradigmatic model

New Journal of Physics, 2017
We consider a particularly simple exactly solvable model for a qubit coupled to sequentially nested environments. The purpose is to exemplify the coherence conserving effect of a central system, that has been reported as a result of increasing the ...
Juan Mauricio Torres, Thomas H Seligman
doaj   +1 more source

Unveiling How Electric Fields Influence Electroluminescent Properties in Light‐Emitting Electrochemical Cells via Operando Optically Detected Magnetic Resonance

Advanced Optical Materials, Volume 14, Issue 4, 27 January 2026.
Electroluminescence‐detected magnetic resonance (ELDMR) is used to probe electron–hole pairs in light‐emitting electrochemical cells under operando conditions. The measurements reveal sweep‐dependent hysteresis linked to changes in the internal electric field, which governs recombination efficiency. These findings demonstrate the capability of ELDMR to
Haruka Tsutsumi, Moena Yasuda, Takayuki Suzuki, Katsuichi Kanemoto   +3 more
wiley   +1 more source

Quantum Jumps in Amplitude Bistability: Tracking a Coherent and Invertible State Localization

Annalen der Physik, Volume 538, Issue 1, January 2026.
A notable asymmetry is shown to characterize the bistable switching between macroscopic metastable states of light in the strong‐coupling limit of radiation–matter interaction. Transitions from the vacuum to a highly excited state correlate with a highly bunched sequence of emitted photons, while a downward switch to the vacuum involves a coherent ...
Th. K. Mavrogordatos
wiley   +1 more source

Strong and Weak Coupling Nanophysics with Free Electron Beams

Advanced Optical Materials, Volume 13, Issue 34, December 2, 2025.
This paper focuses on a short review of the study of the coupling between optical excitations at the nanometer scale, made possible by recent advances in free electron beam spectroscopies. In particular, plasmon–plasmon, plasmon–exciton, and plasmon–phonon couplings are reviewed. Abstract The work of Luis M.
Mathieu Kociak, Xiaoyan Li, Yves Auad, Cyrille Hamon, Claire Goldmann, Luiz Tizei, Odile Stéphan   +6 more
wiley   +1 more source

Hundreds of Nanocoulomb Electron Acceleration Driven by Multipetawatt Laser in Subcritical Density Plasmas

Advanced Photonics Research, Volume 6, Issue 12, December 2025.
Electron acceleration using multipetawatt femtosecond lasers and subcritical density plasmas achieves a maximum charge of 245 nC, with an injection rate of up to 100 nC per picosecond. The charge variation with plasma density, initially increasing and then decreasing, arises from the competition between the injection of multiple plasma waves and laser ...
Xi‐Chen Hu, Ming‐Yang Zhu, Yi‐Fei Li, Jie Feng, Guang‐Wei Lu, Yao‐Jun Li, Xu‐Lei Ge, Xiao‐Jun Huang, Wen‐Chao Yan, Li‐Ming Chen   +9 more
wiley   +1 more source

Collective strong coupling of cold potassium atoms in a ring cavity

New Journal of Physics, 2016
We present experiments on ensemble cavity quantum electrodynamics with cold potassium atoms in a high-finesse ring cavity. Potassium-39 atoms are cooled in a two-dimensional magneto-optical trap and transferred to a three-dimensional trap which ...
R Culver, A Lampis, B Megyeri, K Pahwa, L Mudarikwa, M Holynski, Ph W Courteille, J Goldwin   +7 more
doaj   +1 more source

Transmission properties and PT-symmetry in a hybrid quantum electromechanical system

Results in Physics, 2019
We theoretically study the transmission properties and the PT-symmetry in a hybrid quantum electromechanical system consisting of a coplanar-waveguide (CPW) microwave cavity, a nanomechanical resonator (NAMR) and a superconducting transmon qubit, where ...
Yi-Ping Wang, Zhu-Cheng Zhang, Ya-Fei Yu, Zhi-Ming Zhang   +3 more
doaj   +1 more source

Ab initio quantum models for thin-film x-ray cavity QED

Physical Review Research, 2020
We develop two ab initio quantum approaches to thin-film x-ray cavity quantum electrodynamics with spectrally narrow x-ray resonances, such as those provided by Mössbauer nuclei.
Dominik Lentrodt, Kilian P. Heeg, Christoph H. Keitel, Jörg Evers   +3 more
doaj   +1 more source

Quantum energetics of a noncommuting measurement

Physical Review Research
When a measurement observable does not commute with a quantum system's Hamiltonian, the energy of the measured system is typically not conserved during the measurement. Instead, energy can be transferred between the measured system and the meter. In this
Xiayu Linpeng, Nicolò Piccione, Maria Maffei, Léa Bresque, Samyak P. Prasad, Andrew N. Jordan, Alexia Auffèves, Kater W. Murch   +7 more
doaj   +1 more source

Hamiltonian engineering for robust quantum state transfer and qubit readout in cavity QED

New Journal of Physics, 2017
Quantum state transfer into a memory, state shuttling over long distances via a quantum bus, and high-fidelity readout are important tasks for quantum technology.
Félix Beaudoin, Alexandre Blais, W A Coish   +2 more
doaj   +1 more source