Zobrazeno 1 - 10
of 8 596
pro vyhledávání: '"Meyer, David A."'
The optimal runtime of a quantum computer searching a database is typically cited as the square root of the number of items in the database, which is famously achieved by Grover's algorithm. With parallel oracles, however, it is possible to search fa
Externí odkaz:
http://arxiv.org/abs/2408.05376
Radio frequency (rf) receivers using Rydberg atoms offer appealing features over classical sensors, such as their size, frequency tuning range, and lack of field absorption. In this work, we extend the application space by demonstrating a Rydberg ato
Externí odkaz:
http://arxiv.org/abs/2407.20369
Modern physics experiments rely on precise timing provided by programmable digital pulse generators. In many experimental control systems, this role is filled by custom devices built on Field Programmable Gate Arrays (FPGAs). While highly flexible an
Externí odkaz:
http://arxiv.org/abs/2406.17603
We analyze the optimal regularity that is exactly propagated by a transport equation driven by a velocity field with BMO gradient. As an application, we study the 2D Euler equations in case the initial vorticity is bounded. The sharpness of our resul
Externí odkaz:
http://arxiv.org/abs/2403.13691
Autor:
Meyer, David
We study the $L^2$-gradient flows for functionals of the type $\int_{\Omega}f(x,\mathbb{A}u)\,\mathrm{dx}$, where $f$ is a convex function of linear growth and $\mathbb{A}$ is some first-order linear constant-coefficient differential operator. To thi
Externí odkaz:
http://arxiv.org/abs/2310.15283
Publikováno v:
Nat Commun 15, 5474 (2024)
Heat pumps (HPs) have emerged as a key technology for reducing energy use and greenhouse gas emissions. This study evaluates the potential switch to air-to-air HPs (AAHPs) in Toulouse, France, where conventional space heating is split between electri
Externí odkaz:
http://arxiv.org/abs/2309.15837
Autor:
Meyer, David
We consider a model that approximates vortex rings in the axisymmetric 3D Euler equation by the movement of almost rigid bodies described by Newtonian mechanics. We assume that the bodies have a circular cross-section and that the fluid is irrotation
Externí odkaz:
http://arxiv.org/abs/2309.07004
Autor:
Miller, Benjamin N., Meyer, David H., Virtanen, Teemu, O'Brien, Christopher M., Cox, Kevin C.
We describe a numerical technique and accompanying open-source Python software package called RydIQule. RydIQule uses a directional graph, relying on adjacency matrices and path-finding to generate a Hamiltonian for multi-level atomic systems. RydIQu
Externí odkaz:
http://arxiv.org/abs/2307.15673
Publikováno v:
Rev. Sci. Instrum. 94, 094705 (2023)
Agile rf sources are a common requirement for control systems in quantum science and technology platforms. The direct digital synthesizer (DDS) often fills this role by allowing programmable control of the rf signals. Due to limitations of the DDS ar
Externí odkaz:
http://arxiv.org/abs/2307.02468
Autor:
Elgee, Peter K, Hill, Joshua C, Leblanc, Kermit-James E, Ko, Gabriel D, Kunz, Paul D, Meyer, David H, Cox, Kevin C
Publikováno v:
Appl. Phys. Lett. 123, 084001 (2023)
Rydberg electric field sensors exploit the large number of Rydberg resonances to provide sensitivity over a broad range of the electromagnetic spectrum. However, due to the difficulty of accessing resonant Rydberg states at ultra-high frequency (UHF)
Externí odkaz:
http://arxiv.org/abs/2305.08707