Zobrazeno 1 - 10
of 318
pro vyhledávání: '"KÜHN, Stefan"'
Binary optimization is a fundamental area in computational science, with wide-ranging applications from logistics to cryptography, where the tasks are often formulated as Quadratic or Polynomial Unconstrained Binary Optimization problems (QUBO/PUBO).
Externí odkaz:
http://arxiv.org/abs/2412.14783
Lattice quantum field theory calculations may potentially combine the advantages of Hamiltonian formulations with the scalability and control of conventional Lagrangian frameworks. However, such hybrid approaches need to consider (1) the differences
Externí odkaz:
http://arxiv.org/abs/2411.02185
Autor:
Bulgarelli, Andrea, Cellini, Elia, Jansen, Karl, Kühn, Stefan, Nada, Alessandro, Nakajima, Shinichi, Nicoli, Kim A., Panero, Marco
We introduce a novel technique to numerically calculate R\'enyi entanglement entropies in lattice quantum field theory using generative models. We describe how flow-based approaches can be combined with the replica trick using a custom neural-network
Externí odkaz:
http://arxiv.org/abs/2410.14466
Autor:
Crane, Eleanor, Smith, Kevin C., Tomesh, Teague, Eickbusch, Alec, Martyn, John M., Kühn, Stefan, Funcke, Lena, DeMarco, Michael Austin, Chuang, Isaac L., Wiebe, Nathan, Schuckert, Alexander, Girvin, Steven M.
We develop a hybrid oscillator-qubit processor framework for quantum simulation of strongly correlated fermions and bosons that avoids the boson-to-qubit mapping overhead encountered in qubit hardware. This framework gives exact decompositions of par
Externí odkaz:
http://arxiv.org/abs/2409.03747
Variational quantum algorithms and, in particular, variants of the varational quantum eigensolver have been proposed to address combinatorial optimization (CO) problems. Using only shallow ansatz circuits, these approaches are deemed suitable for cur
Externí odkaz:
http://arxiv.org/abs/2408.03073
Autor:
Peng, Changnan, Diamantini, Maria Cristina, Funcke, Lena, Hassan, Syed Muhammad Ali, Jansen, Karl, Kühn, Stefan, Luo, Di, Naredi, Pranay
In this paper, a Hamiltonian lattice formulation for 2+1D compact Maxwell-Chern-Simons theory is derived. We analytically solve this theory and demonstrate that the mass gap in the continuum limit matches the well-known continuum formula. Our formula
Externí odkaz:
http://arxiv.org/abs/2407.20225
This work explores the application of the concurrent variational quantum eigensolver (cVQE) for computing excited states of the Schwinger model. By designing suitable ansatz circuits utilizing universal SO(4) or SO(8) qubit gates, we demonstrate how
Externí odkaz:
http://arxiv.org/abs/2407.15629
This paper introduces a structure-inspired ansatz for addressing quadratic unconstrained binary optimization problems with the Variational Quantum Eigensolver. We propose a novel warm start technique that is based on imaginary time evolution, and all
Externí odkaz:
http://arxiv.org/abs/2407.02569
Autor:
Nicoli, Kim A., Anders, Christopher J., Funcke, Lena, Hartung, Tobias, Jansen, Karl, Kühn, Stefan, Müller, Klaus-Robert, Stornati, Paolo, Kessel, Pan, Nakajima, Shinichi
In this paper, we propose a novel and powerful method to harness Bayesian optimization for Variational Quantum Eigensolvers (VQEs) -- a hybrid quantum-classical protocol used to approximate the ground state of a quantum Hamiltonian. Specifically, we
Externí odkaz:
http://arxiv.org/abs/2406.06150
Autor:
Crippa, Arianna, Romiti, Simone, Funcke, Lena, Jansen, Karl, Kühn, Stefan, Stornati, Paolo, Urbach, Carsten
In this paper, we examine a compact $U(1)$ lattice gauge theory in $(2+1)$ dimensions and present a strategy for studying the running coupling and extracting the non-perturbative $\Lambda$-parameter. To this end, we combine Monte Carlo simulations an
Externí odkaz:
http://arxiv.org/abs/2404.17545