Hamiltonian determination with restricted access in transverse field ising chain

Mohammad Ali Fasihi, Shu Tanaka, Mikio Nakahara, Yasushi Kondo

研究成果: Article査読

2 被引用数 (Scopus)

抄録

We propose a method to evaluate parameters in the Hamiltonian of the Ising chain under site-dependent transverse fields, with a proviso that we can control and measure one of the edge spins only. We evaluate the eigenvalues of the Hamiltonian and the time-evoultion operator exactly for a three-spin chain, from which we obtain the expectation values of σx of the first spin. The parameters are found from the peak positions of the Fourier transform of the expectation value. There are four assumptions in our method, which are mild enough to be satisfied in many physical systems.

本文言語English
論文番号044002
ジャーナルJournal of the Physical Society of Japan
80
4
DOI
出版ステータスPublished - 2011 4
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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