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pro vyhledávání: '"Portugal, P."'
Using the hybrid formalism with manifest $N=1$ $d=4$ spacetime supersymmetry, we construct the quadratic term in the heterotic superstring field theory action. As in open superstring field theory using the hybrid formalism, the heterotic string field
Externí odkaz:
http://arxiv.org/abs/2412.15343
Since classical machine learning has become a powerful tool for developing data-driven algorithms, quantum machine learning is expected to similarly impact the development of quantum algorithms. The literature reflects a mutually beneficial relations
Externí odkaz:
http://arxiv.org/abs/2412.09486
Autor:
Portugal, Ulisses M
We explicitly compute the effective action from Open Superstring Field Theory in the hybrid formalism to quartic order in the $\alpha'\rightarrow 0$ limit, and show that it reproduces ten-dimensional Super Yang-Mills in terms of four-dimensional supe
Externí odkaz:
http://arxiv.org/abs/2411.04208
Many quantum technologies, including quantum computers, quantum heat engines, and quantum sensors, rely on operating conditions in the subkelvin regime. It is therefore desirable to develop practical tools and methods for the precise control of the t
Externí odkaz:
http://arxiv.org/abs/2410.04796
The statistics of transmitted photons in microwave cavities play a foundational role in microwave quantum optics and its technological applications. By utilizing quantum mechanical phase-space methods, we here develop a general theory of the photon c
Externí odkaz:
http://arxiv.org/abs/2407.20477
Autor:
de Almeida, Duarte Sampaio, Simões, Rodrigo, Abreu, Fernando Brito e, Lopes, Adriano, Boavida-Portugal, Inês
Determining the carrying capacity of urban tourism destinations and public spaces is essential for sustainable management. This paper presents an online tool that calculates pedestrian carrying capacities for user-defined areas based on OpenStreetMap
Externí odkaz:
http://arxiv.org/abs/2406.16781
Publikováno v:
Proceedings of Quantum Week 2023
The Hiperwalk package is designed to facilitate the simulation of quantum walks using heterogeneous high-performance computing, taking advantage of the parallel processing power of diverse processors such as CPUs, GPUs, and acceleration cards. This p
Externí odkaz:
http://arxiv.org/abs/2406.08186
Autor:
Bernardes, Vinicius, Portugal, Ulisses
We introduce a two parameter family of string field theory vertices, which we refer to as hyperbolic Kaku vertices. It is defined in terms of hyperbolic metrics on the Riemann surface, but the geometry is allowed to depend on inputs of the states. Th
Externí odkaz:
http://arxiv.org/abs/2404.17268
Are EEG Sequences Time Series? EEG Classification with Time Series Models and Joint Subject Training
Autor:
Burchert, Johannes, Werner, Thorben, Yalavarthi, Vijaya Krishna, de Portugal, Diego Coello, Stubbemann, Maximilian, Schmidt-Thieme, Lars
As with most other data domains, EEG data analysis relies on rich domain-specific preprocessing. Beyond such preprocessing, machine learners would hope to deal with such data as with any other time series data. For EEG classification many models have
Externí odkaz:
http://arxiv.org/abs/2404.06966
In this paper, we analyze the dynamics of quantum walks on a graph structure resulting from the integration of a main connected graph $G$ and a secondary connected graph $G'$. This composite graph is formed by a disjoint union of $G$ and $G'$, follow
Externí odkaz:
http://arxiv.org/abs/2402.08243