Phononic bright and dark states: Investigating multi-mode light-matter interactions with a single trapped ion
arxiv(2024)
摘要
Interference underpins some of the most practical and impactful properties of
both the classical and quantum worlds. In this work we experimentally
investigate a new formalism to describe interference effects, based on
collective states which have enhanced or suppressed coupling to a two-level
system. We employ a single trapped ion, whose electronic state is coupled to
two of the ion's motional modes in order to simulate a multi-mode light-matter
interaction. We observe the emergence of phononic bright and dark states for
both a single phonon and a superposition of coherent states and demonstrate
that a view of interference which is based solely on their decomposition in the
collective basis is able to intuitively describe their coupling to a single
atom. This work also marks the first time that multi-mode bright and dark
states have been formed with the bounded motion of a single trapped ion and we
highlight the potential of the methods discussed here for use in quantum
information processing.
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