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Now showing items 60-79 of 79

PARTICLE SPECTRUM OF THE REISSNER–NORDSTRÖM BLACK HOLE

Good, Michael R. R.; Ong, Yen Chin (SpringerOpen, 2020-12-21)

The Reissner–Nordström black hole – moving mirror correspondence is solved. The beta coefficients reveal that charge makes a black hole radiate fewer particles (neutral massless scalars) per frequency. An old ...
Perovskite solar cells with a hybrid electrode structure

Jumabekov, Askhat; Hu, Yinghong; Adhyaksa, Gede W. P.; DeLuca, Giovanni; Simonov, Alexandr N.; Duffy, Noel W.; Reichmanis, Elsa; Bach, Udo; Docampo, Pablo; Bein, Thomas; Garnett, Erik C.; Chesman, Anthony S. R. (AIP Publishing, 2019-12-23)

Perovskite solar cells (PSCs) with a novel hybrid electrode structure, in which a single device can operate with either a vertical (sandwich) or lateral (back-contact) configuration of contacts, are demonstrated in this ...
PHOTONIC MEMORY WITH NONLINEAR PLASMONIC NANOTUBES

Abrashuly, Aivar; Valagiannopoulos, Constantinos (APL Materials, 2021-10-12)

Photonic memory devices are capable of giving different outputs for the same present input, judging from the input’s past values and, in this way, “remembering” what happened the previous times. Nonlinear cylindrical ...
PHOTOTHERMAL EFFECTS AND HEAT CONDUCTION IN NANOGRANULAR SILICON FILMS

Kurbanova, Bayan A.; Mussabek, Gauhar K.; Timoshenko, Viktor Y.; Lysenko, Vladimir; Utegulov, Zhandos N. (MDPI, 2021-09-13)

We present results on the photothermal (PT) and heat conductive properties of nanogranular silicon (Si) films synthesized by evaporation of colloidal droplets (drop-casting) of 100 ± 50 nm-sized crystalline Si nanoparticles ...
PMMA Thin Film with Embedded Carbon Quantum Dots for Post-Fabrication Improvement of Light Harvesting in Perovskite Solar Cells

Maxim, Askar A.; Sadyk, Shynggys N.; Aidarkhanov, Damir; Surya, Charles; Ng, Annie; Hwang, Yoon-Hwae; Atabaev, Timur; Jumabekov, Askhat (MDPI, 2020-02-09)

Perovskite solar cells (PSCs) with a standard sandwich structure suffer from optical transmission losses due to the substrate and its active layers. Developing strategies for compensating for the losses in light harvesting ...
QUANTUM ATMOSPHERE OF REISSNER-NORDSTRÖM BLACK HOLES

Ong, Yen Chin; Good, Michael R. R. (PHYSICAL REVIEW RESEARCH, 2020-08-27)

Hawking radiation originates from a “quantum atmosphere” around black holes, not necessarily from the vicinity of the horizon. We examine and discuss the properties of quantum atmospheres of asymptotically flat Reissne ...
Quantum compiling with diffusive sets of gates

Akulin, Vladimir M.; Mandilara, Aikaterini; Zhiyenbayev, Yertay (Nazarbayev University School of Sciences and Humanities, 2018-01-15)

Given a set of quantum gates and a target unitary operation, the most elementary task of quantum compiling is the identification of a sequence of the gates that approximates the target unitary to a determined precision ε. ...
QUANTUM POWER DISTRIBUTION OF RELATIVISTIC ACCELERATION RADIATION: CLASSICAL ELECTRODYNAMIC ANALOGIES WITH PERFECTLY REFLECTING MOVING MIRRORS

Zhakenuly, Abay; Temirkhan, Maksat; Good, Michael R. R.; Chen, Pisin (MDPI AG, 2021-04-12)

We find the quantum power emitted and distribution in 3 + 1-dimensions of relativistic acceleration radiation using a single perfectly reflecting mirror via Lorentz invariance, demonstrating close analogies to point charge ...
QUASI-HARMONIC OSCILLATIONS OF CHARGED PARTICLES IN STATIC AXIALLY SYMMETRIC SPACE-TIMES IMMERSED IN A UNIFORM MAGNETIC FIELD

Benavides-Gallego, Carlos A.; Abdujabbarov, Ahmadjon; Malafarina, Daniele; Bambi, Cosimo (arxiv, 2020)

In continuation of our previous study [Phys. Rev. D 99 (2019) 4, 044012], we investigate the motion of charged particles in the γ-metric. We provide some examples of curled trajectories in the equatorial plane and escape ...
SCOPE: SCUBA-2 Continuum Observations of Pre-protostellar Evolution – survey description and compact source catalogue

Alina, Dana; Eden, D. J.; Liu, Tie; Kim, Kee-Tae; Juvela, M.; Liu, S. Y.; Tatematsu, K.; Di Francesco, J.; Wang, K.; Wu, Y.; Thompson, M. A.; Fuller, G. A.; Li, Di; Ristorcelli, I.; Kang, Sung-ju; Hirano, N.; Johnstone, D.; Lin, Y.; He, J. H.; Koch, P. M.; Sanhueza, Patricio; Qin, S. L.; Zhang, Q.; Goldsmith, P. F.; Evans, N. J.; Yuan, J.; Zhang, C. P.; White, G. J.; Choi, Minho; Lee, Chang Won; Toth, L. V.; Mairs, S.; Yi, H. W.; Tang, M.; Soam, A.; Peretto, N.; Samal, M. R.; Fich, M.; Parsons, H.; Malinen, J.; Bendo, G. J.; Rivera-Ingraham, A.; Liu, H. L.; Wouterloot, J.; Li, P. S.; Qian, L.; Rawlings, J.; Rawlings, M. G.; Feng, S.; Wang, B.; Li, Dalei; Liu, M.; Luo, G.; Marston, A. P.; Pattle, K. M.; Pelkonen, V. M.; Rigby, A. J.; Zahorecz, S.; Zhang, G.; Bogner, R.; Aikawa, Y.; Akhter, S.; Alina, D.; Bell, G.; Bernard, J. P.; Blain, A.; Bronfman, L.; Byun, D. Y.; Chapman, S.; Chen, H. R.; Chen, M.; Chen, W. P.; Chen, X.; Chen, Xuepeng; Chrysostomou, A.; Chu, Y. H.; Chung, E. J.; Cornu, D.; Cosentino, G.; Cunningham, M. R.; Demyk, K.; Drabek-Maunder, E.; Doi, Y.; Eswaraiah, C.; Falgarone, E.; Feher, O.; Fraser, H.; Friberg, P.; Garay, G.; Ge, J. X.; Gear, W. K.; Greaves, J.; Guan, X.; Harvey-Smith, L.; Hasegawa, T.; He, Y.; Henkel, C.; Hirota, T.; Holland, W.; Hughes, A.; Jarken, E.; Ji, T. G.; Jimenez-Serra, I.; Kang, M.; Kawabata, K. S.; Kim, Gwanjeong; Kim, Jungha; Kim, Jongsoo; Kim, S.; Koo, B. C.; Kwon, Woojin; Kuan, Y. J.; Lacaille, K. M.; Lai, S. P.; Lee, C. F.; Lee, J. E.; Lee, Y. U.; Li, H.; Lo, N.; Lopez, J. A.; Lu, X.; Lyo, A. R.; Mardones, D.; McGehee, P.; Meng, F.; Montier, L.; Montillaud, J.; Moore, T. J.; Morata, O.; Moriarty-Schieven, G. H.; Ohashi, S.; Pak, S.; Park, Geumsook; Paladini, R.; Pech, G.; Qiu, K.; Ren, Z. Y.; Richer, J.; Sakai, T.; Shang, H.; Shinnaga, H.; Stamatellos, D.; Tang, Y. W.; Traficante, A.; Vastel, C.; Viti, S.; Walsh, A.; Wang, H.; Wang, J.; Ward-Thompson, D.; Whitworth, A.; Wilson, C. D.; Xu, Y.; Yang, J.; Yuan, Y. L.; Yuan, L.; Zavagno, A.; Zhang, C.; Zhang, G.; Zhang, H. W.; Zhou, C.; Zhou, J.; Zhu, L.; Zuo, P. (Oxford University Press, 2019-02-26)

We present the first release of the data and compact-source catalogue for the JCMT Large Program SCUBA-2 Continuum Observations of Pre-protostellar Evolution (SCOPE). SCOPE consists of 850 μm continuum observations of 1235 ...
Simultaneous characterization of cross- and in-plane thermal transport in insulator patterned by directionally aligned nano-channels

Abdullaev, A.; Utegulov, Zhandos N.; Chauhan, Vinay S.; O’Connell, Jacques; Skuratov, Vladimir; Khafizov, M. (AIP Publishing, 2020-01-06)

Anisotropic thermal transport behavior was investigated in a single crystal sapphire patterned by vertically aligned few-nanometer diameter and several micrometer long cylindrical ion tracks. These ion tracks were introduced ...
SOLUTION-PROCESSED ANTIREFLECTIVE COATING FOR BACK-CONTACT PEROVSKITE SOLAR CELLS

Bacal, Dorota M.; Lal, Niraj N.; Jumabekov, Askhat N.; Hou, Qicheng; Hu, Yinghong; Lu, Jianfeng; Chesman, Anthony S. R.; Bach, Udo (Optics Express, 2020)

Back-contact architectures for perovskite solar cells eliminate parasitic-absorption losses caused by the electrode and charge collection layers but increase surface reflection due to the high refractive index mismatch ...
Statistical analysis of the interplay between interstellar magnetic fields and filaments hosting Planck Galactic cold clumps

Alina, D.; Ristorcelli, I.; Montier, L.; Abdikamalov, E.; Juvela, M.; Ferriere, K.; Bernard, J. Ph.; Micelotta, E. R. (OXFORD UNIV PRESS, 2019-02)

We present a statistical study of the relative orientation in the plane of the sky between interstellar magnetic fields and filaments hosting cold clumps. For the first time, we consider both the density of the environment ...
STUDY OF THE ELECTRON–ATOM COLLISIONS IN DENSE SEMICLASSICAL PLASMA OF NOBLE GASES

Dzhumagulova, Karlygash N.; Shalenov, Erik O.; Tashkenbayev, Yerkhan A.; Ramazanov, Tlekkabyl S. (Journal of Plasma Physics, 2022)

We present the effective optical potential of the interaction of an electron with an atom in dense semiclassical plasma of noble gases. This potential takes into account the collective screening effect and the quantum ...
Thermodynamic and holographic information dual to volume

Momeni, Davood; Faizal, Mir; Alsaleh, Salwa; Alasfar, Lina; Myrzakul, Aizhan; Myrzakulov, Ratbay (Eur. Phys. J., 2018)

In this paper, we will analyze the connection between the fidelity susceptibility, the holographic complexity and the thermodynamic volume. We will regularize the fidelity susceptibility and the holographic complexity by ...
TOPOLOGICAL SCATTERING RESONANCES AT ULTRALOW FREQUENCIES

Gangaraj, S. Ali Hassani; Valagiannopoulos, Constantinos; Monticone, Francesco (PHYSICAL REVIEW RESEARCH, 2020-05-15)

At frequencies much lower than the plasma frequency, individual subwavelength plasmonic scatterers are typically far from any scattering resonance, with the exception of some extreme geometries. Contrary to this conventional ...
A TOY MODEL FOR A BABY UNIVERSE INSIDE A BLACK HOLE

Chakrabarty, Hrishikesh; Abdujabbarov, Ahmadjon; Malafarina, Daniele; Bambi, Cosimo (Springer Verlag, 2020-05)

We present a dynamical toy model for an expanding universe inside a black hole. The model is built by matching a spherically symmetric collapsing matter cloud to an expanding Friedmann–Robertson–Walker universe through a ...
UNIAXIAL FILMS OF MAXIMALLY CONTROLLABLE RESPONSE UNDER VISIBLE LIGHT

Tulegenov, Dias; Valagiannopoulos, Constantinos (Nature Research, 2020-08-03)

The controllability of photonic setups is strongly related to how coherently their outputs react to changes in their inputs; such a generic concept is treated in the case of films comprising multilayers of tilted optical ...
Unruh-like effects: effective temperatures along stationary worldlines

Good, Michael R.R.; Ju´arez-Aubry, Benito A.; Moustos, Dimitris; Temirkhan, Maksat (Springer Verlag, 2020-06)

We study the detailed balance temperatures recorded along all classes of stationary, uniformly accelerated worldlines in four-dimensional Minkowski spacetime, namely along (i) linear uniform acceleration, (ii) cusped, ...
Zeeman gyrotropic scatterers: Resonance splitting, anomalous scattering, and embedded eigenstates

Valagiannopoulos, Constantinos; Gangaraj, S Ali Hassani; Monticone, Francesco (Nanomaterials and Nanotechnology, 2018-09-03)

Anomalous scattering effects (invisibility, superscattering, Fano resonances, etc) enabled by complex media and metamaterials have been the subject of intense efforts in the past couple of decades. In this article, we ...