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Related papers: Carrier recombination dynamics in InGaN/GaN multip…

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Coupling of quantum emitters in a semiconductor relies, generally, on short-range dipole-dipole or electronic exchange type interactions. Consistently, energy transfer between exciton states, that is, electron-hole pairs bound by Coulomb…

Mesoscale and Nanoscale Physics · Physics 2024-09-17 Maciej Ściesiek , Krzysztof Sawicki , Wojciech Pacuski , Kamil Sobczak , Tomasz Kazimierczuk , Andrzej Golnik , Jan Suffczyński

Magnetotransport of conventional semiconductor based double layer systems with barrier suppressed interlayer tunneling has been a rewarding subject due to the emergence of an interlayer coherent state that behaves as an excitonic…

Mesoscale and Nanoscale Physics · Physics 2025-01-06 Dohun Kim , Seyoung Jin , Takashi Taniguchi , Kenji Watanabe , Jurgen H. Smet , Gil Young Cho , Youngwook Kim

Spin-orbit interaction is investigated in a dual gated InAs/GaSb quantum well. Using an electric field the quantum well can be tuned between a single carrier regime with exclusively electrons as carriers and a two-carriers regime where…

This study investigates quantum energy teleportation (QET) using stochastic bi-partitioning in an $N-$body Hamiltonian system. In this protocol, project measurements are performed on $(N - m)$ qubits to capture quantum fluctuation…

Quantum Physics · Physics 2024-10-08 Zhirong Xun , Changliang Ren

We investigate far from equilibrium energy transport in strongly coupled quantum critical systems. Combining results from gauge-gravity duality, relativistic hydrodynamics, and quantum field theory, we argue that long-time energy transport…

High Energy Physics - Theory · Physics 2015-06-03 M. J. Bhaseen , Benjamin Doyon , Andrew Lucas , Koenraad Schalm

In a GaAs/AlGaAs two-dimensional electron system with two occupied subbands, the experimentally determined phase diagram in the density-magnetic field plane exhibits rich topological features. Ring-like structures are observed at even…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 X. C. Zhang , D. R. Faulhaber , H. W. Jiang

We studied the recombination dynamics of charge carriers in organic bulk heterojunction solar cells made of the blend system poly(2,5-bis(3-dodecyl thiophen-2-yl) thieno[2,3-b]thiophene) (pBTCT-C12):[6,6]-phenyl-C61-butyric acid methyl…

Observations and simulations show that outflows in active galactic nuclei (AGN) contain gas in different phases. To understand their true impact on galaxy evolution, we advocate consistent and unbiased investigation of these multiphase…

Astrophysics of Galaxies · Physics 2018-03-01 Claudia Cicone , Marcella Brusa , Cristina Ramos Almeida , Giovanni Cresci , Bernd Husemann , Vincenzo Mainieri

We investigate non-linear magneto-transport in a Hall bar device made from a strained InGaAs/InP quantum well: a material system with attractive spintronic properties. From extensive maps of the longitudinal differential resistance (r_xx)…

Disordered Systems and Neural Networks · Physics 2018-10-31 V. Yu , M. Hilke , P. J. Poole , S. Studenikin , D. G. Austing

The recurrence phenomena of an initially well localized wave packet are studied in periodically driven power-law potentials. For our general study we divide the potentials in two kinds, namely tightly binding and loosely binding potentials.…

Quantum Physics · Physics 2009-11-13 Shahid Iqbal , Qurat-ul-Ann , Farhan Saif

In this work, we have theoretically investigated the intermixing effect in highly strained In$_{0.3}$Ga$_{0.7}$As/GaAs quantum well (QW) taking into consideration the composition profile change resulting from in-situ indium surface…

Mesoscale and Nanoscale Physics · Physics 2015-10-23 M. Souaf , M. Baira , H. Maaref , B. Ilahi

We model generation and propagation of coherent acoustic phonons in piezoelectric InGaN/GaN multi-quantum wells embedded in a \textit{pin} diode structure and compute the time resolved reflectivity signal in simulated pump-probe…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 G. D. Sanders , C. J. Stanton

Although integrable spin chains only host ballistically propagating particles they can still feature diffusive spin transport. This diffusive spin transport originates from quasiparticle charge fluctuations inherited from the initial…

Statistical Mechanics · Physics 2024-11-19 Hansveer Singh , Michael H. Kolodrubetz , Sarang Gopalakrishnan , Romain Vasseur

The structures and dynamics of molecular, atomic, and ionized gases are studied around a low-luminosity active galactic nucleus (AGN) with a small ($2\times 10^6 M_\odot$) black hole using 3D radiation hydrodynamic simulations. We studied,…

Astrophysics of Galaxies · Physics 2016-09-21 Keiichi Wada , Marc Schartmann , Rowin Meijerink

We present a series of three-dimensional hydrodynamical simulations of central AGN driven jets in a dynamic, cosmologically evolved galaxy cluster. Extending previous work, we study jet powers ranging from L_jet = 10^44 erg/s to L_jet =…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Brian J. Morsony , Sebastian Heinz , Marcus Bruggen , Mateusz Ruszkowski

Cathodoluminescence measurements on single InGaN/GaN quantum dots (QDs) are reported. Complex spectra with up to five emission lines per QD are observed. The lines are polarized along the orthogonal crystal directions [1 1 -2 0] and [-1 1 0…

Materials Science · Physics 2007-06-14 M. Winkelnkemper , R. Seguin , S. Rodt , A. Schliwa , L. Reissmann , A. Strittmatter , A. Hoffmann , D. Bimberg

We present a quantum model to calculate the dipole-dipole coupling between electronic excitations in the conduction band of semiconductor quantum wells. We demonstrate that the coupling depends on a characteristic length, related to the…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 Giulia Pegolotti , Angela Vasanelli , Yanko Todorov , Carlo Sirtori

We provide an architecture for a multimode quantum battery (QB) based on the framework of continuous variable (CV) systems. We examine the performance of the battery by using a generic class of multimode initial states whose parameters can…

Quantum Physics · Physics 2024-08-30 Tanoy Kanti Konar , Ayan Patra , Rivu Gupta , Srijon Ghosh , Aditi Sen De

We present results on electron transport in quasi-one dimensional (1D) quantum wires in GaAs/AlGaAs heterostructures obtained using an asymmetric confinement potential. The variation of the energy levels of the spatially quantized states is…

Mesoscale and Nanoscale Physics · Physics 2021-04-07 S. Kumar , M. Pepper , H. Montagu , D. Ritchie , I. Farrer , J. Griffiths , G. Jones

Filling factor $\nu=1$ incompressible states in ideal bilayer quantum Hall systems have spontaneous interlayer phase coherence and can be regarded either as easy-plane pseudospin ferromagnets or as condensates of excitons formed from…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Anton A. Burkov , Yogesh N. Joglekar , Enrico Rossi , Allan H. MacDonald