Zobrazeno 1 - 10
of 21 468
pro vyhledávání: '"Oppenheim A"'
Coboundary expansion is a high dimensional generalization of the Cheeger constant to simplicial complexes. Originally, this notion was motivated by the fact that it implies topological expansion, but nowadays a significant part of the motivation stem
Externí odkaz:
http://arxiv.org/abs/2411.02819
Autor:
Oppenheim, Izhar
We prove that a group acting geometrically on a thick affine building has property (T). A more general criterion for property (T) is given for groups acting on partite complexes.
Comment: 10 pages. arXiv admin note: text overlap with arXiv:2112.
Comment: 10 pages. arXiv admin note: text overlap with arXiv:2112.
Externí odkaz:
http://arxiv.org/abs/2410.05716
Strong electric fields in the auroral and equatorial electrojets can distort the background ion distribution function away from Maxwellian. We developed a collisional plasma kinetic model using the Boltzmann equation and a simple BGK collision operat
Externí odkaz:
http://arxiv.org/abs/2408.06339
A way to reconcile general relativity and quantum field theory without quantising the geometry is to demand the metric evolve stochastically. In this article, we explore the consequences of such a proposal at early cosmological times. We find the sto
Externí odkaz:
http://arxiv.org/abs/2407.13820
Autor:
Ding, Qi, Oppenheim, Alan V., Boufounos, Petros T., Gustavsson, Simon, Grover, Jeffrey A., Baran, Thomas A., Oliver, William D.
Despite progress towards achieving low error rates with superconducting qubits, error-prone two-qubit gates remain a bottleneck for realizing large-scale quantum computers. Therefore, a systematic framework to design high-fidelity gates becomes imper
Externí odkaz:
http://arxiv.org/abs/2407.02722
Online platforms host a diverse user base, which can be broadly categorized into "specialist users" with focused interests and "generalist users" who engage in a wide range of topics. This study explores the behavioral differences between these two u
Externí odkaz:
http://arxiv.org/abs/2406.03443
We study a quantum oscillator interacting and back-reacting on a classical oscillator. This can be done consistently provided the quantum system decoheres, while the backreaction has a stochastic component which causes the classical system to undergo
Externí odkaz:
http://arxiv.org/abs/2403.07479
Autor:
Oppenheim, Jonathan, Russo, Andrea
We consider a proposed alternative to quantum gravity, in which the spacetime metric is treated as classical, even while matter fields remain quantum. Consistency of the theory necessarily requires that the metric evolve stochastically. Here, we show
Externí odkaz:
http://arxiv.org/abs/2402.19459
One of the obstacles to reconciling quantum theory with general relativity, is constructing a theory which is both consistent with observation, and and gives finite answers at high energy, so that the theory holds at arbitrarily short distances. Quan
Externí odkaz:
http://arxiv.org/abs/2402.17844
When classical degrees of freedom and quantum degrees of freedom are consistently coupled, the former diffuse, while the latter undergo decoherence. Here, we construct a theory of quantum matter fields and Nordstrom gravity in which the space-time me
Externí odkaz:
http://arxiv.org/abs/2401.05514