Zobrazeno 1 - 10
of 11 955
pro vyhledávání: '"A. Janz"'
The angular momentum of radiation from an arbitrarily moving relativistic charge is studied. The angular momentum is presented as the sum of the angular momentum relative to the point where the charge is located at a retarded moment of time and the a
Externí odkaz:
http://arxiv.org/abs/2408.13272
Autor:
Diab, Momen, Cheriton, Ross, Taylor, Jacob, Patel, Dhwanil, Rojas, Libertad, Barnet, Mark, Zavyalova, Polina, Xu, Dan-Xia, Cheben, Pavel, Janz, Siegfried, Schmid, Jens H., Sivanandam, Suresh
In ground-based astronomy, the ability to couple light into single-mode fibers (SMFs) is limited by atmospheric turbulence, which prohibits the use of many astrophotonic instruments. We propose a silicon-on-insulator photonic chip capable of coherent
Externí odkaz:
http://arxiv.org/abs/2408.07735
Long baseline optical interferometry and aperture synthesis using ground-based telescopes can enable unprecedented angular resolution astronomy in the optical domain. However, atmospheric turbulence leads to large, dynamic phase errors between partic
Externí odkaz:
http://arxiv.org/abs/2408.06461
Autor:
Patel, Dhwanil, Diab, Momen, Cheriton, Ross, Taylor, Jacob, Rojas, Libertad, Vachon, Martin, Xu, Dan-Xia, Schmid, Jens H., Cheben, Pavel, Janz, Siegfried, Sivanandam, Suresh
Optical beams and starlight distorted by atmospheric turbulence can be corrected with adaptive optics systems to enable efficient coupling into single-mode fibers. Deformable mirrors, used to flatten the wavefront in astronomical telescopes, are cost
Externí odkaz:
http://arxiv.org/abs/2407.11171
This paper considers data secrecy in distributed storage systems (DSSs) using maximally recoverable locally repairable codes (MR-LRCs). Conventional MR-LRCs are in general not secure against eavesdroppers who can observe the transmitted data during a
Externí odkaz:
http://arxiv.org/abs/2405.06098
Large language models (LLMs) have significantly advanced Natural Language Processing (NLP) tasks in recent years. However, their universal nature poses limitations in scenarios requiring personalized responses, such as recommendation systems and chat
Externí odkaz:
http://arxiv.org/abs/2402.09269
Autor:
Zhang, Jianhao, Melati, Daniele, Grinberg, Yuri, Vachon, Martin, Wang, Shurui, Al-Digeil, Muhammad, Janz, Siegfried, Schmid, Jens H., Cheben, Pavel, Xu, Dan-Xia
Perfectly vertical grating couplers leveraging metamaterials can achieve both high coupling efficiency and minimal back reflection. The fabricability of these designs, with segmentations in both the longitudinal and transverse dimensions, hinges on t
Externí odkaz:
http://arxiv.org/abs/2311.12057
We provide the first useful and rigorous analysis of ensemble sampling for the stochastic linear bandit setting. In particular, we show that, under standard assumptions, for a $d$-dimensional stochastic linear bandit with an interaction horizon $T$,
Externí odkaz:
http://arxiv.org/abs/2311.08376
We introduce exploration via linear loss perturbations (EVILL), a randomised exploration method for structured stochastic bandit problems that works by solving for the minimiser of a linearly perturbed regularised negative log-likelihood function. We
Externí odkaz:
http://arxiv.org/abs/2311.07565
Autor:
Lin, Jihao Andreas, Padhy, Shreyas, Antorán, Javier, Tripp, Austin, Terenin, Alexander, Szepesvári, Csaba, Hernández-Lobato, José Miguel, Janz, David
As is well known, both sampling from the posterior and computing the mean of the posterior in Gaussian process regression reduces to solving a large linear system of equations. We study the use of stochastic gradient descent for solving this linear s
Externí odkaz:
http://arxiv.org/abs/2310.20581