Results 41 to 50 of about 38,763 (200)

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Some Physical Aspects of Liouville String Dynamics [PDF]

, 1994
We discuss some physical aspects of our Liouville approach to non-critical strings, including the emergence of a microscopic arrow of time, effective field theories as classical ``pointer'' states in theory space, $CPT$ violation and the possible ...
Ellis, J., Mavromatos, N., Nanopoulos, D.   +2 more
core   +1 more source

AdS_2 Supergravity and Superconformal Quantum Mechanics

, 2003
We investigate the asymptotic dynamics of topological anti-de Sitter supergravity in two dimensions. Starting from the formulation as a BF theory, it is shown that the AdS_2 boundary conditions imply that the asymptotic symmetries form a super-Virasoro ...
Achucarro, Akulov, Bañados, Brigante, Brown, Cacciatori, Cacciatori, Cadoni, Cadoni, Cadoni, Cadoni, Cadoni, Cadoni, Caldarelli, Cardy, Chamseddine, Chamseddine, Claus, Coussaert, Coussaert, Daniela Zanon, de Alfaro, Dietmar Klemm, Elitzur, Fubini, Grumiller, Henneaux, Henneaux, Hull, Isler, Klemm, Klemm, Klösch, Maldacena, Marco Astorino, Ness, Park, Schaller, Sergio Cacciatori, Strominger, Strominger, Strominger, Witten, Witten, Witten   +44 more
core   +1 more source

Transient Terahertz Oscillations During Photoinduced Polarization Topology Reconfiguration in Ferroelectric Superlattices

Advanced Science, EarlyView.
Terahertz resonances in crystalline heterostructures could close a spectral gap between conventional electronics and photonics while opening new windows on non‐equilibrium lattice dynamics. Femtosecond optical screening of the depolarization field in epitaxial PbTiO3/SrTiO3 superlattices launches a collective polar mode that oscillates near 1 THz and ...
Deepankar Sri Gyan, Hyeon Jun Lee, Xiangwei Guo, Youngjun Ahn, Samuel D. Marks, Mohammed H. Yusuf, Matthew Dawber, James M. Glownia, Diling Zhu, Takahiro Sato, Sanghoon Song, Haidan Wen, Jia‐Mian Hu, Paul G. Evans   +13 more
wiley   +1 more source

Quantum Mechanics and Black Holes in Four-Dimensional String Theory

, 1991
In previous papers we have shown how strings in a two-dimensional target space reconcile quantum mechanics with general relativity, thanks to an infinite set of conserved quantum numbers, ``W-hair'', associated with topological soliton-like states.
Allen, Alvarez-Gaumé, Antoniadis, Bakas, Bekenstein, Bowick, Brézin, Cremmer, D.V. Nanopoulos, Dijkraaf, Douglas, Eguchi, Ellis, Ellis, Ellis, Ellis, Ellis, Ellis, Ellis, Evans, Evans, Green, Gross, Gross, Gross, Hawking, Hawking, Horava, Horne, John Ellis, Kalara, Krauss, Kubota, Lahanas, Maharana, Mandal, Mandelstam, Marcus, Mazur, Misner, Mitchell, Moore, N.E. Mavromatos, Page, Polyakov, Preskill, Sengupta, Stefani, Veneziano, Wheeler, Whitt, Wilkinson, Witten, Witten, Witten, Witten, York   +56 more
core   +2 more sources

Dirac Surface‐State Driven Broad Spectral Band Low Quantum Energy Photoresponse in Quaternary Topological BiSbSe2Te

Advanced Science, EarlyView.
Quaternary topological BiSbSe2Te are synthesized and demonstrates a broad spectral band photoresponse, ranging from infrared to terahertz and to millimeter waves, with a particular excellence on detection of low quantum energy terahertz photons. The observed photoresponse is attributed to the excitation of plasmonic nonequilibrium electrons originating
Tianning Zhang, Jinchao Tong, Jiantian Zhang, Peng Yu, Heng Luo, Luo Yan, Boyu Yang, Tiantian Huang, Junhui Ran, Yan Chen, Liujiang Zhou, Xin Chen, Ning Dai, Jianlu Wang, Junhao Chu   +14 more
wiley   +1 more source

Generative AI‐Driven Accelerated Discovery of Passivation Molecules for Perovskite Solar Cells

Advanced Science, EarlyView.
A generative artificial intelligence (AI) framework combining a discriminative machine learning model (SMILES‐X) and a generative language model (GPT‐2) autonomously discovers new molecular passivators for perovskite solar cells (PSCs). Through an iterative design loop, over 100 000 candidates are generated and screened, and randomly selected molecules
Adroit T. N. Fajar, Guillaume Lambard, Jessie Manopo, Ruili Guo, Kevin Septioga, Rizfi F. Pari, Toshinori Matsushima, Zhanglin Guo   +7 more
wiley   +1 more source

Glimpse on the relationship between Feynman integral and integrable system [PDF]

, 2004
We briefly review recent attempts to relate the concept of Feynman integral and integrable systems. This constitutes an endeavour on our part in making the Feynman path integral into a mathematically meaningful ...
Abdul Aziz, Zainal
core  

ML Workflows for Screening Degradation‐Relevant Properties of Forever Chemicals

Advanced Science, EarlyView.
The environmental persistence of per‐ and polyfluoroalkyl substances (PFAS) necessitates efficient remediation strategies. This study presents physics‐informed machine learning workflows that accurately predict critical degradation properties, including bond dissociation energies and polarizability.
Pranoy Ray, Andrew R. Castillo, Manoj Kolel‐Veetil, Surya R. Kalidindi   +3 more
wiley   +1 more source

General boundary quantum field theory: Foundations and probability interpretation

, 2008
We elaborate on the proposed general boundary formulation as an extension of standard quantum mechanics to arbitrary (or no) backgrounds. Temporal transition amplitudes are generalized to amplitudes for arbitrary spacetime regions.
Oeckl, Robert
core   +1 more source