Zobrazeno 1 - 10
of 2 422
pro vyhledávání: '"NELSON, DAVID R."'
Autor:
Long, Cheng, Nelson, David R.
Geometry and topology play a fundamental role in determining pattern formation on 2D surfaces in condensed matter physics. For example, local positive Gaussian curvature of a 2D surface attracts positive topological defects in a liquid crystal phase
Externí odkaz:
http://arxiv.org/abs/2412.03377
Autor:
Nelson, David R., Jaiswal, Ashish Kumar, Ismail, Noha, Mystikou, Alexandra, Salehi-Ashtiani, Kourosh
AI language models (LMs) show promise for biological sequence analysis. We re-engineered open-source LMs (GPT-2, BLOOM, DistilRoBERTa, ELECTRA, and Mamba, ranging from 70M to 12B parameters) for microbial sequence classification. The models achieved
Externí odkaz:
http://arxiv.org/abs/2411.06798
Unlike coffee and cream that homogenize when stirred, growing micro-organisms (e.g., bacteria, baker's yeast) can actively kill each other and avoid mixing. How do such antagonistic interactions impact the growth and survival of competing strains, wh
Externí odkaz:
http://arxiv.org/abs/2408.16784
This contribution is intended for Journal of Physics A: Mathematical and Theoretical Special issue on Non-equilibrium Dynamics in Complex Systems: Celebrating the Contributions of Uwe T\"{a}uber on his 60th Birthday. Cones with orientational order in
Externí odkaz:
http://arxiv.org/abs/2405.03742
Geometric confinement and topological constraints present promising means of controlling active materials. By combining analytical arguments derived from the Born-Oppenheimer approximation with numerical simulations, we investigate the simultaneous i
Externí odkaz:
http://arxiv.org/abs/2310.06022
Publikováno v:
Physical Review E 108, 054608 (2023)
Conical surfaces pose an interesting challenge to crystal growth: a crystal growing on a cone can wrap around and meet itself at different radii. We use a disk-packing algorithm to investigate how this closure constraint can geometrically frustrate t
Externí odkaz:
http://arxiv.org/abs/2309.14446
Autor:
Nelson, David R.
This contribution will be published in '50 years of the renormalization group', dedicated to the memory of Michael E. Fisher, edited by Amnon Aharony, Ora Entin-Wohlman, David Huse, and Leo Radzihovsky, World Scientific. These personal remembrances c
Externí odkaz:
http://arxiv.org/abs/2306.00955
Publikováno v:
Phys. Rev. Materials 8, 016001 (2024)
Crystalline sheets (e.g., graphene and transition metal dichalcogenides) liberated from a substrate are a paradigm for materials at criticality because flexural phonons can fluctuate into the third dimension. Although studies of static critical behav
Externí odkaz:
http://arxiv.org/abs/2305.06798