Few-qubit quantum refrigerator for cooling a multi-qubit system
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-92258-0
Abstract: We propose to use a few-qubit system as a compact quantum refrigerator for cooling an interacting multi-qubit system. We specifically consider a central qubit coupled to N ancilla qubits in a so-called spin-star model to… read more here.
Keywords: qubit system; multi qubit; quantum refrigerator; refrigerator cooling ... See more keywords
Bohmian trajectories in an entangled two-qubit system
Sign Up to like & getrecommendations! Published in 2019 at "Physica Scripta"
DOI: 10.1088/1402-4896/ab2445
Abstract: In this paper we examine the evolution of Bohmian trajectories in the presence of quantum entanglement. We study a simple two-qubit system composed of two coherent states and investigate the impact of quantum entanglement on… read more here.
Keywords: two qubit; bohmian trajectories; qubit system; trajectories entangled ... See more keywords
Entanglement evolution of a three-qubit system after interaction with even three-mode nonlinear coherent state
Sign Up to like & getrecommendations! Published in 2021 at "Physica Scripta"
DOI: 10.1088/1402-4896/abdd55
Abstract: In this paper, using an entangled three-mode field state, we study the production of entanglement in a three- qubit system. The entangled three-mode field state is defined as superposed three-mode nonlinear coherent state, which is… read more here.
Keywords: state; qubit system; three mode; three qubit ... See more keywords
Vector properties of entanglement in a three-qubit system
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.032401
Abstract: We suggest a dynamical vector model of entanglement in a three qubit system based on isomorphism between $su(4)$ and $so(6)$ Lie algebras. Generalizing Plucker-type description of three-qubit local invariants we introduce three pairs of real-valued… read more here.
Keywords: entanglement three; qubit system; qubit; three qubit ... See more keywords
Quantum violation of variants of Leggett-Garg inequalities up to the algebraic maximum for a qubit system
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DOI: 10.1103/physreva.98.062115
Abstract: In 1985, Leggett and Garg formulated a class of inequalities for testing the compatibility between macrorealism and quantum mechanics. In this paper, we point out that based on the same assumptions of macrorealism that are… read more here.
Keywords: quantum violation; qubit system; system; garg inequalities ... See more keywords
Quantum Pattern Classification in a Three-Qubit System
Sign Up to like & getrecommendations! Published in 2023 at "Symmetry"
DOI: 10.3390/sym15040883
Abstract: The problem of pattern classification in quantum data has been of great importance over the past few years. This study investigates the effect of deploying Grover’s, the partial diffusion, and the fixed-phase algorithms separately to… read more here.
Keywords: qubit system; pattern classification; classification; classification three ... See more keywords