Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Jamet, François"'
Autor:
Anuar, Aeishah Ameera, Jamet, Francois, Gironella, Fabio, Simkovic IV, Fedor, Rossi, Riccardo
Variational Quantum Imaginary Time Evolution (VQITE) is a leading technique for ground state preparation on quantum computers. A significant computational challenge of VQITE is the determination of the quantum geometric tensor. We show that requiring
Externí odkaz:
http://arxiv.org/abs/2409.12018
Autor:
Umeano, Chukwudubem, Jamet, François, Lindoy, Lachlan P., Rungger, Ivan, Kyriienko, Oleksandr
We develop a quantum simulation-based approach for studying properties of strongly correlated magnetic materials at increasing scale. We consider a paradigmatic example of a quantum spin liquid (QSL) state hosted by the honeycomb Kitaev model, and us
Externí odkaz:
http://arxiv.org/abs/2407.04205
Non-Markovian noise can be a significant source of errors in superconducting qubits. We develop gate sequences utilising mirrored pseudoidentities that allow us to characterise and model the effects of non-Markovian noise on both idle and driven qubi
Externí odkaz:
http://arxiv.org/abs/2306.13021
Matrix Product States (MPS) and Operators (MPO) have been proven to be a powerful tool to study quantum many-body systems but are restricted to moderately entangled states as the number of parameters scales exponentially with the entanglement entropy
Externí odkaz:
http://arxiv.org/abs/2305.19231
Autor:
Jamet, Francois, Lindoy, Lachlan P., Rath, Yannic, Lenihan, Connor, Agarwal, Abhishek, Fontana, Enrico, Simkovic IV, Fedor, Martin, Baptiste Anselme, Rungger, Ivan
Solving the Anderson impurity model typically involves a two-step process, where one first calculates the ground state of the Hamiltonian, and then computes its dynamical properties to obtain the Green's function. Here we propose a hybrid classical/q
Externí odkaz:
http://arxiv.org/abs/2304.06587
We propose a variational quantum eigensolver (VQE) algorithm that uses a fault-tolerant gate-set, and is hence suitable for implementation on a future error-corrected quantum computer. VQE quantum circuits are typically designed for near-term, noisy
Externí odkaz:
http://arxiv.org/abs/2303.04491
We present an algorithm to compute Green's functions on quantum computers for interacting electron systems, which is a challenging task on conventional computers. It uses a continued fraction representation based on the Lanczos method, where the wave
Externí odkaz:
http://arxiv.org/abs/2205.00094
Machine learning opens new avenues for modelling correlated materials. Quantum embedding approaches, such as the dynamical mean-field theory (DMFT), provide corrections to first-principles calculations for strongly correlated materials, which are poo
Externí odkaz:
http://arxiv.org/abs/2107.13960
Autor:
Jamet, Francois, Agarwal, Abhishek, Lupo, Carla, Browne, Dan E., Weber, Cedric, Rungger, Ivan
We propose an algorithm to obtain Green's functions as a continued fraction on quantum computers, which is based on the construction of the Krylov basis using variational quantum algorithms, and included in a Lanczos iterative scheme. This allows the
Externí odkaz:
http://arxiv.org/abs/2105.13298
Publikováno v:
Phys. Rev. Research 4, 033189 (2022)
Optimally doped YBCO (YBa$_{2}$Cu$_{3}$O$_{7}$) has a high critical temperature, at 92 K. It is largely believed that Cooper pairs form in YBCO and other cuprates because of spin fluctuations, the issue and the detailed mechanism is far from settled.
Externí odkaz:
http://arxiv.org/abs/2012.04897