Zobrazeno 1 - 10
of 4 526
pro vyhledávání: '"Nielsen, P E"'
Alzheimer's disease (AD) is the leading cause of dementia, and its early detection is crucial for effective intervention, yet current diagnostic methods often fall short in sensitivity and specificity. This study aims to detect significant indicators
Externí odkaz:
http://arxiv.org/abs/2410.24002
Quantum many-body scars are energy eigenstates which fail to reproduce thermal expectation values of local observables in systems, where the rest of the many-body spectrum fulfils eigenstate thermalization. Experimental observation of quantum many-bo
Externí odkaz:
http://arxiv.org/abs/2410.14613
Autor:
Nielsen, Morten E., Fornberg, Bengt
In this paper, we present how high-order accurate solutions to elliptic partial differential equations can be achieved in arbitrary spatial domains using radial basis function-generated finite differences (RBF-FD) on unfitted node sets (i.e., not adj
Externí odkaz:
http://arxiv.org/abs/2407.15825
Publikováno v:
Phys. Rev. Research 6, L042007 (2024)
We propose a type of phase transition in quantum many-body systems, which occurs in highly excited quantum many-body scar states, while most of the spectrum is largely unaffected. Such scar state phase transitions can be realized by embedding a matri
Externí odkaz:
http://arxiv.org/abs/2405.20113
Publikováno v:
Phys. Rev. A 110, 023301 (2024)
The eigenstate thermalization hypothesis describes how isolated many-body quantum systems reach thermal equilibrium. However, quantum many-body scars and Hilbert space fragmentation violate this hypothesis and cause nonthermal behavior. We demonstrat
Externí odkaz:
http://arxiv.org/abs/2404.07825
Hilbert space fragmentation provides a mechanism to break ergodicity in closed many-body systems. Here, we propose a realistic scheme to comprehensively explore this exotic paradigm on a Rydberg quantum simulator. We show that the Rydberg Ising model
Externí odkaz:
http://arxiv.org/abs/2403.13790
Publikováno v:
SciPost Phys. 16, 083 (2024)
Recent advancements in fabrication techniques have enabled unprecedented clean interfaces and gate tunability in semiconductor-superconductor heterostructures. Inspired by these developments, we propose protocols to realize Thouless quantum pumping i
Externí odkaz:
http://arxiv.org/abs/2308.13597
Publikováno v:
Phys. Rev. A 109, 023310 (2024)
The eigenstate thermalization hypothesis describes how most isolated many-body quantum systems reach thermal equilibrium. However, the hypothesis is violated by phenomena such as many-body localization and quantum many-body scars. In this work, we st
Externí odkaz:
http://arxiv.org/abs/2308.12409
Publikováno v:
PRX Quantum 5, 020365 (2024)
Adiabatic time evolution of quantum systems is a widely used tool with applications ranging from state preparation through simplifications of computations and topological transformations to optimization and quantum computing. Adiabatic time evolution
Externí odkaz:
http://arxiv.org/abs/2306.13967
Feature visualization is used to visualize learned features for black box machine learning models. Our approach explores an altered training process to improve interpretability of the visualizations. We argue that by using background removal techniqu
Externí odkaz:
http://arxiv.org/abs/2306.13178