A5067617890- Quantum Information and Cryptography
- Quantum many-body systems
- Quantum and electron transport phenomena
- Quantum Computing Algorithms and Architecture
- Cold Atom Physics and Bose-Einstein Condensates
- Neural Networks and Reservoir Computing
- Spectroscopy and Quantum Chemical Studies
- Advanced Thermodynamics and Statistical Mechanics
- Quantum, superfluid, helium dynamics
- Opinion Dynamics and Social Influence
- Optical Network Technologies
- Tensor decomposition and applications
- Complex Network Analysis Techniques
- Statistical Mechanics and Entropy
Institute of Theoretical and Applied Informatics
2023-2024
Polish Academy of Sciences
2023-2024
Mohammed V University
2018-2021
Abstract We investigate the computational efficiency and thermodynamic cost of D-Wave quantum annealer under reverse-annealing with without pausing. Our demonstration on 2000 Q shows that combination pausing leads to improved while minimizing compared alone. Moreover, we find magnetic field has a positive impact performance during but becomes detrimental when is involved. results, which are reproducible, provide strategies for optimizing energy consumption annealing systems employing protocols.
This work introduces SpinGlassPEPS$.$jl, a software package implemented in Julia, designed to find low-energy configurations of generalized Potts models, including Ising and QUBO problems, utilizing heuristic tensor network contraction algorithms on quasi-2D geometries. In particular, the employs Projected Entangled-Pairs States approximate Boltzmann distribution corresponding model's cost function. enables an efficient branch-and-bound search (within probability space) that exploits...
We examine how the presence of an excited-state quantum phase transition manifests in dynamics a many-body system subject to sudden quench. Focusing on Lipkin-Meshkov-Glick model initialized ground state ferromagnetic phase, we demonstrate that work probability distribution displays non-Gaussian behavior for quenches vicinity critical point. Furthermore, show entropy diagonal ensemble is highly susceptible regions, making it robust and practical indicator associated spectral characteristics....
Abstract The long distance entanglement in finite size open Fermi–Hubbard chains, together with the end-to-end quantum teleportation are investigated. We show peculiarity of ground state model to support maximum entanglement, which allows it operate as a resource for high fidelity teleportation. determine physical properties and conditions creating scalable analyze its stability under effect Coulomb interaction hopping amplitude. Furthermore, we that choice measurement basis protocol can...
We demonstrate the unique capabilities of Wigner function, particularly in its positive and negative parts, for exploring phase diagram spin$-(\frac{1}{2\!}-\!\frac{1}{2})$ spin$-(\frac{1}{2}\!-\!1)$ Ising-Heisenberg chains. highlight advantages limitations space approach comparison with entanglement concurrence detecting boundaries. establish that equal angle slice approximation is an effective method capturing essential features diagram, but falls short accurately assessing negativity...
We demonstrate the unique capabilities of Wigner function, particularly in its positive and negative parts, for exploring phase diagram spin -(1/2-1/2) spin-(1/2-1) Ising-Heisenberg chains. highlight advantages limitations phase-space approach comparison with entanglement concurrence detecting boundaries. establish that equal angle slice approximation space is an effective method capturing essential features but falls short accurately assessing negativity function homogeneous spin-(1/2-1/2)...
We investigate the computational efficiency and thermodynamic cost of D-Wave quantum annealer under reverse-annealing with without pausing. Our experimental results demonstrate that combination pausing leads to improved while minimizing compared alone. Moreover, we find magnetic field has a positive impact on performance during but becomes detrimental when is involved. provide strategies for optimizing energy consumption annealing systems employing protocols.
In this dissertation, we analyze equilibrium and out-of-equilibrium quantum phase transitions present in spin-$\frac{1}{2}$ models, using a information approach through correlations space formalism, thermodynamic the work statistics formalism.
The long distance entanglement in finite size open Fermi-Hubbard chains, together with the end-to-end quantum teleportation are investigated. We show peculiarity of ground state model to support maximum entanglement, which allows it operate as a resource for high fidelity teleportation. determine physical properties and conditions creating scalable analyze its stability under effect Coulomb interaction hopping amplitude. Furthermore, we that choice measurement basis protocol can drastically...