Entanglement of a Single Spin-1 Object: An Example of Ubiquitous Entanglement [PDF]
, 2007 Using a single spin-1 object as an example, we discuss a recent approach to quantum entanglement. The key idea of the approach consists in presetting of basic observables in the very definition of quantum system.
A. Einstein +33 more
core +2 more sources
Exponential Thermal Tensor Network Approach for Quantum Lattice Models [PDF]
Physical Review X, 2017 We speed up thermal simulations of quantum many-body systems in both one- (1D) and two-dimensional (2D) models in an exponential way by iteratively projecting the thermal density matrix $\hat\rho=e^{-\beta \hat{H}}$ onto itself.
Bin-Bin Chen +4 more
semanticscholar +1 more source
From Rotations to Unitaries: Reversible Quantum Processes and the Emergence of the SU(2)−SO(3) Homomorphism [PDF]
Revista Brasileira de Ensino de FísicaWe present an operational reconstruction of the well-known two-to-one homomorphism between the groups SU(2) and SO(3), grounded in the physical description of quantum state preparation and evolution.
V.G Valle, B.F. Rizzuti
doaj +1 more source
Error Mitigation for Short-Depth Quantum Circuits. [PDF]
Physical Review Letters, 2016 Two schemes are presented that mitigate the effect of errors and decoherence in short-depth quantum circuits. The size of the circuits for which these techniques can be applied is limited by the rate at which the errors in the computation are introduced.
K. Temme, S. Bravyi, J. Gambetta
semanticscholar +1 more source
Socio-Economic Sciences: Beyond Quantum Math-like Formalisms
Quantum Reports, 2021 Since the beginning of the 21st century, a new interdisciplinary research movement has started, which aims at developing quantum math-like (or simply quantum-like) models to provide an explanation for a variety of socio-economic processes and human ...
Vikram Athalye, Emmanuel Haven
doaj +1 more source
Physical approach to quantum networks with massive particles
, 2017 This paper treats a quantum network from a physical approach, explicitly finds the physical eigenstates and compares them to the quantum-graph description.
Andersen, Molte Emil Strange +1 more
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On time independent Schrödinger equations in quantum mechanics by the homotopy analysis method
Theoretical and Applied Mechanics Letters, 2019 A general analytic approach, namely the homotopy analysis method (HAM), is applied to solve the time independent Schrödinger equations. Unlike perturbation method, the HAM-based approach does not depend on any small physical parameters, corresponding to ...
Jyotirmoy Rana, Shijun Liao
doaj +1 more source
Deterministic optimal quantum cloning via a quantum-optical neural network
Physical Review Research, 2023 Quantum machine learning represents a promising approach to disclose novel possibilities for quantum information protocols. Thus, recent efforts have been dedicated to determine how to merge, or extend, machine learning approaches in the quantum domain ...
Denis Stanev +2 more
doaj +1 more source
Suppressing Decoherence in Quantum State Transfer with Unitary Operations
Entropy, 2022 Decoherence is the fundamental obstacle limiting the performance of quantum information processing devices. The problem of transmitting a quantum state (known or unknown) from one place to another is of great interest in this context.
Maxim A. Gavreev +3 more
doaj +1 more source
Optimized Compilation of Aggregated Instructions for Realistic Quantum Computers
, 2019 Recent developments in engineering and algorithms have made real-world applications in quantum computing possible in the near future. Existing quantum programming languages and compilers use a quantum assembly language composed of 1- and 2-qubit (quantum
Chong, Fred T. +6 more
core +1 more source