Measuring quantum coherence in bulk solids using dual phase-locked optical pulses

Shingo Hayashi, Keigo Kato, Katsura Norimatsu, Masaki Hada, Yosuke Kayanuma, Kazutaka G. Nakamura

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Electronic and phonon coherence are usually measured in different ways because their time-scales are very different. In this paper we simultaneously measure the electronic and phonon coherence using the interference of the electron-phonon correlated states induced by two phase-locked optical pulses. Interferometric visibility showed that electronic coherence remained in a semiconducting GaAs crystal until ∼40 fs; in contrast, electronic coherence disappeared within 10 fs in a semimetallic Bi crystal at room temperature, differing substantially from the long damping time of its phonon coherence, in the picosecond range.

Original languageEnglish
Article number4456
JournalScientific reports
Volume4
DOIs
Publication statusPublished - Mar 25 2014

ASJC Scopus subject areas

  • General

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    Hayashi, S., Kato, K., Norimatsu, K., Hada, M., Kayanuma, Y., & Nakamura, K. G. (2014). Measuring quantum coherence in bulk solids using dual phase-locked optical pulses. Scientific reports, 4, [4456]. https://doi.org/10.1038/srep04456