Journal ArticleDOI
Characteristics of strong-coupling bipolaron qubit in two-dimensional quantum dot in electric field
Ying Zhang,Chao Han,Eerdunchaolu +2 more
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TLDR
Based on Lee-Low-Pines (LLP) unitary transformation, the authors adopts the variational method of the Pekar type and gets the energy and wave functions of the ground state and the first excited state of strong-coupling bipolaron in two-dimensional quantum dot in electric field, thus constructs a bipolaron qubit.Abstract:
Based on Lee-Low-Pines (LLP) unitary transformation, this article adopts the variational method of the Pekar type and gets the energy and wave functions of the ground state and the first excited state of strong-coupling bipolaron in two-dimensional quantum dot in electric field, thus constructs a bipolaron qubit. The numerical results represent that the time oscillation period T
0 of probability density of the two electrons in qubit decreases with the increasing electric field intensity F and dielectric constant ratio of the medium η; the probability density Q of the two electrons in qubit oscillates periodically with the increasing time t; the probability of electron appearing near the center of the quantum dot is larger, while that appearing away from the center of the quantum dot is much smaller.read more
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Decoherence of Magneto-Bipolaron with Strong Coupling in a Quantum Dot Qubit Under Applied Electric Field
TL;DR: In this paper, the physical properties and decoherence of strong coupling magneto-bipolaron qubit in a quantum dot under the effect of an external electric field were evaluated using the Pekar variational method.
Journal ArticleDOI
Probability density of bipolaron in a parabolic potential two-dimensional quantum dot under external magnetic and electric fields
TL;DR: In this article, the probability of the presence of two electrons at any point in space in a parabolic potential quantum dot under the effect of an external magnetic and electric fields was investigated.
References
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Neil Gershenfeld,Isaac L. Chuang +1 more
TL;DR: A new approach to quantum computing is introduced based on the use of multiple-pulse resonance techniques to manipulate the small deviation from equilibrium of the density matrix of a macroscopic ensemble so that it appears to be the density Matrix of a much lower dimensional pure state.
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The Motion of Slow Electrons in a Polar Crystal
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