Results 51 to 60 of about 763,683 (173)

Effect of Sc3+ doping on the structure and electrical properties of NBT-based oxygen-ion conductor

open access: yesMaterials Research Express
Sc ^3+ was chosen as the dopant, and two series of samples, Na _0.5 Bi _0.49-x Sc _x TiO _3- _δ (abbreviated as x Sc-Bi, x = 0–0.05) and Na _0.5 Bi _0.49 Ti _1-x Sc _x O _3- _δ (abbreviated as x Sc-Ti, x = 0–0.07), were synthesized via the solid-state ...
Cuiting Guo   +7 more
doaj   +1 more source

Complexity of Digital Quantum Simulation in the Low-Energy Subspace: Applications and a Lower Bound [PDF]

open access: yesQuantum
Digital quantum simulation has broad applications in approximating unitary evolution of Hamiltonians. In practice, many simulation tasks for quantum systems focus on quantum states in the low-energy subspace instead of the entire Hilbert space.
Weiyuan Gong, Shuo Zhou, Tongyang Li
doaj   +1 more source

Quantum computing simulation of the hydrogen molecular ground-state energies with limited resources

open access: yesOpen Physics, 2021
In this article, the hydrogen molecular ground-state energies using our algorithm based on quantum variational principle are calculated. They are calculated through a simulator since the system of the present study (i.e., the hydrogen molecule) is ...
Abu-Nada Ali
doaj   +1 more source

Observation of the dynamics of an ergodic quantum protocol in a photonic realization

open access: yesNew Journal of Physics, 2021
Iterated quantum protocols with measurement-based selection lead to deterministic chaos for the evolving pure state representing an ensemble of qubits. Deterministic chaos for the pure quantum state may lead to ergodic evolution in the sense that initial
Dengke Qu   +6 more
doaj   +1 more source

Exciton-Polariton Quantum Simulators [PDF]

open access: yesarXiv, 2015
A quantum simulator is a purposeful quantum machine that can address complex quantum problems in a controllable setting and an efficient manner. This chapter introduces a solid-state quantum simulator platform based on exciton-polaritons, which are hybrid light-matter quantum quasi-particles. We describe the physical realization of an exciton-polariton
arxiv  

Divide and conquer approach to quantum Hamiltonian simulation

open access: yesNew Journal of Physics, 2018
We show a divide and conquer approach for simulating quantum mechanical systems on quantum computers. We can obtain fast simulation algorithms using Hamiltonian structure.
Stuart Hadfield, Anargyros Papageorgiou
doaj   +1 more source

Quantum Isomorphic Simulation [PDF]

open access: yesarXiv, 1997
A new type of quantum simulator is proposed which can simulate any quantum many-body system in an isomorphic manner. It can actually synthesize a duplicate of the system to be simulated. The isomorphic simulation has the great advantage that the inevitable coupling of the simulator to the environment can be fully exploited in simulating thermodynamic ...
arxiv  

Gate-Level Simulation of Quantum Circuits [PDF]

open access: yesarXiv, 2002
While thousands of experimental physicists and chemists are currently trying to build scalable quantum computers, it appears that simulation of quantum computation will be at least as critical as circuit simulation in classical VLSI design. However, since the work of Richard Feynman in the early 1980s little progress was made in practical quantum ...
arxiv  

Quantum simulation of quantum field theories as quantum chemistry

open access: yesJournal of High Energy Physics, 2020
Conformal truncation is a powerful numerical method for solving generic strongly-coupled quantum field theories based on purely field-theoretic technics without introducing lattice regularization.
Junyu Liu, Yuan Xin
doaj   +1 more source

Topological magneto-optical effects and their quantization in noncoplanar antiferromagnets

open access: yesNature Communications, 2020
Magneto-optical effects in magnets are commonly attributed to the interplay between exchange splitting and spin-orbit coupling. Here, Feng et al. report a topological magneto-optical effect in non-coplanar antiferromagnets due to finite scalar spin ...
Wanxiang Feng   +6 more
doaj   +1 more source

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