Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Chai, Yahui"'
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
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
Publikováno v:
in 2023 IEEE International Conference on Quantum Computing and Engineering (QCE), Bellevue, WA, USA, 2023 pp. 332-333
In this study, we consider a Gaussian Boson Sampler for solving a Flight Gate Assignment problem. We employ a Variational Quantum Eigensolver approach using the Conditional Value-at-risk cost function. We provide proof of principle by carrying out nu
Externí odkaz:
http://arxiv.org/abs/2312.07235
Autor:
Chai, Yahui, Crippa, Arianna, Jansen, Karl, Kühn, Stefan, Pascuzzi, Vincent R., Tacchino, Francesco, Tavernelli, Ivano
We propose a method to prepare Gaussian wave packets with momentum on top of the interacting ground state of a fermionic Hamiltonian. Using Givens rotation, we show how to efficiently obtain expectation values of observables throughout the evolution
Externí odkaz:
http://arxiv.org/abs/2312.02272
We study the flight gate assignment problem on IonQ's Aria trapped ion quantum computer using the variational quantum eigensolver. Utilizing the conditional value at risk as an aggregation function, we demonstrate that current trapped ion quantum har
Externí odkaz:
http://arxiv.org/abs/2309.09686
The variational quantum imaginary time evolution (VarQITE) algorithm is a near-term method to prepare the ground state and Gibbs state of Hamiltonians. Finding an appropriate parameterization of the quantum circuit is crucial to the success of VarQIT
Externí odkaz:
http://arxiv.org/abs/2307.13598
Autor:
Chai, Yahui, Funcke, Lena, Hartung, Tobias, Jansen, Karl, Kuehn, Stefan, Stornati, Paolo, Stollenwerk, Tobias
Publikováno v:
Phys. Rev. Applied 20, 064025 (2023)
We investigate the performance of the variational quantum eigensolver (VQE) for the optimal flight gate assignment problem. This problem is a combinatorial optimization problem that aims at finding an optimal assignment of flights to the gates of an
Externí odkaz:
http://arxiv.org/abs/2302.11595
Publikováno v:
Phys.Rev.A 105,042415 (2022)
The Quantum Approximate Optimization Algorithm (QAOA) is a quantum-classical hybrid algorithm intending to find the ground state of a target Hamiltonian. Theoretically, QAOA can obtain the approximate solution if the quantum circuit is deep enough. A
Externí odkaz:
http://arxiv.org/abs/2112.10943
Autor:
Chai, Yahui, Li, Yuan, Xia, Shicheng, Alexandrou, Constantia, Cichy, Krzysztof, Constantinou, Martha, Feng, Xu, Hadjiyiannakou, Kyriakos, Jansen, Karl, Koutsou, Giannis, Liu, Chuan, Scapellato, Aurora, Steffens, Fernanda
Publikováno v:
Phys. Rev. D 102, 014508 (2020)
We perform a first calculation for the unpolarized parton distribution function of the $\Delta^+$ baryon using lattice QCD simulations within the framework of Large Momentum Effective Theory. Two ensembles of $N_f=2+1+1$ twisted mass fermions are uti
Externí odkaz:
http://arxiv.org/abs/2002.12044
Autor:
Chai, Yahui, Li, Yuan, Xia, Shicheng, Alexandrou, Constantia, Cichy, Krzysztof, Constantinou, Martha, Feng, Xu, Hadjiyiannakou, Kyriakos, Jansen, Karl, Koutsou, Giannis, Liu, Chuan, Scapellato, Aurora, Steffens, Fernanda
We present results for renormalized matrix elements related to the unpolarized quasi-distribution function of the $\Delta^+$ baryon making use of the large momentum effective theory. Two ensembles of $N_f=2+1+1$ twisted mass fermions with a clover te
Externí odkaz:
http://arxiv.org/abs/1907.09827