Zobrazeno 1 - 10
of 660
pro vyhledávání: '"A. Krzywda"'
Publikováno v:
Progress in Polish Artificial Intelligence Research, pp. 512-519, 2024
The present study covers an approach to neural architecture search (NAS) using Cartesian genetic programming (CGP) for the design and optimization of Convolutional Neural Networks (CNNs). In designing artificial neural networks, one crucial aspect of
Externí odkaz:
http://arxiv.org/abs/2410.00129
Autor:
Krzywda, Jan A., Cywiński, Łukasz
Electron shuttling is one of the currently pursued avenues towards the scalability of semiconductor quantum dot-based spin qubits. We theoretically analyze the dephasing of a spin qubit adiabatically transferred between two tunnel-coupled quantum dot
Externí odkaz:
http://arxiv.org/abs/2405.12185
Autor:
Berritta, Fabrizio, Krzywda, Jan A., Benestad, Jacob, van der Heijden, Joost, Fedele, Federico, Fallahi, Saeed, Gardner, Geoffrey C., Manfra, Michael J., van Nieuwenburg, Evert, Danon, Jeroen, Chatterjee, Anasua, Kuemmeth, Ferdinand
Publikováno v:
Phys. Rev. Applied 22, 014033 (2024)
Environmental fluctuations degrade the performance of solid-state qubits but can in principle be mitigated by real-time Hamiltonian estimation down to time scales set by the estimation efficiency. We implement a physics-informed and an adaptive Bayes
Externí odkaz:
http://arxiv.org/abs/2404.09212
We present QDarts, an efficient simulator for realistic charge stability diagrams of quantum dot array (QDA) devices in equilibrium states. It allows for pinpointing the location of concrete charge states and their transitions in a high-dimensional v
Externí odkaz:
http://arxiv.org/abs/2404.02064
Publikováno v:
SciPost Phys. 17, 014 (2024)
Slow fluctuations of Overhauser fields are an important source for decoherence in spin qubits hosted in III-V semiconductor quantum dots. Focusing on the effect of the field gradient on double-dot singlet-triplet qubits, we present two adaptive Bayes
Externí odkaz:
http://arxiv.org/abs/2309.15014
Autor:
Berritta, Fabrizio, Rasmussen, Torbjørn, Krzywda, Jan A., van der Heijden, Joost, Fedele, Federico, Fallahi, Saeed, Gardner, Geoffrey C., Manfra, Michael J., van Nieuwenburg, Evert, Danon, Jeroen, Chatterjee, Anasua, Kuemmeth, Ferdinand
Publikováno v:
Nature Communications 15, 1676 (2024)
Optimal control of qubits requires the ability to adapt continuously to their ever-changing environment. We demonstrate a real-time control protocol for a two-electron singlet-triplet qubit with two fluctuating Hamiltonian parameters. Our approach le
Externí odkaz:
http://arxiv.org/abs/2308.02012
Publikováno v:
Appl. Phys. Lett. 123, 034003 (2023)
Fluctuations of electric fields can change the position of a gate-defined quantum dot in a semiconductor heterostructure. In the presence of magnetic field gradient, these stochastic shifts of electron's wavefunction lead to fluctuations of electron'
Externí odkaz:
http://arxiv.org/abs/2305.06011
Publikováno v:
Appl. Phys. Lett. 123, 034005 (2023)
Due to presence of magnetic field gradient needed for coherent spin control, dephasing of single-electron spin qubits in silicon quantum dots is often dominated by $1/f$ charge noise. We investigate theoretically fluctuations of ground state energy o
Externí odkaz:
http://arxiv.org/abs/2303.13968
Graph Neural Networks (GNNs) are a family of graph networks inspired by mechanisms existing between nodes on a graph. In recent years there has been an increased interest in GNN and their derivatives, i.e., Graph Attention Networks (GAT), Graph Convo
Externí odkaz:
http://arxiv.org/abs/2212.10207
Autor:
Fabrizio Berritta, Torbjørn Rasmussen, Jan A. Krzywda, Joost van der Heijden, Federico Fedele, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Evert van Nieuwenburg, Jeroen Danon, Anasua Chatterjee, Ferdinand Kuemmeth
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Optimal control of qubits requires the ability to adapt continuously to their ever-changing environment. We demonstrate a real-time control protocol for a two-electron singlet-triplet qubit with two fluctuating Hamiltonian parameters. Our ap
Externí odkaz:
https://doaj.org/article/c903453854be4308bfa97a8fdf04f2c2
