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Generation of quantum states by the dynamics of spin chains: Analytical solution

Moradi, M ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1103/PhysRevA.99.052115
  3. Publisher: American Physical Society , 2019
  4. Abstract:
  5. We design a quasi-one-dimensional spin chain with engineered coupling strengths such that the natural dynamics of the spin chain evolves a single excitation localized at the left-hand site to any specified single-particle state on the whole chain. Our treatment is an exact solution to a problem which has already been addressed in approximate ways. As two important examples, we study the W states and Gaussian states of arbitrary width. © 2019 American Physical Society
  6. Keywords:
  7. Excited states ; Spin dynamics ; Coupling strengths ; Exact solution ; Gaussian state ; Natural dynamics ; Quantum state ; Quasi-one dimensional ; Single excitation ; Single particle state ; Quantum theory
  8. Source: Physical Review A ; Volume 99, Issue 5 , 2019 ; 24699926 (ISSN)
  9. URL: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.99.052115