17 citations · 17 across the 3 of their papers we have counts for
7 papers · 1 filter
Study of decoherence in radial local phonon hopping within trapped-ion string
Yu-Xuan Chen, Takumi Yuri, Kenji Toyoda
We systematically investigate local phonon hopping in the radial direction of a linear trapped-ion string. We measure the decay of hopping as a function of key trap parameters and…
Polariton blockade in the Jaynes-Cummings-Hubbard model with trapped ions
Ryutaro Ohira, Shota Kume, Hiroki Takahashi +1
We have experimentally observed the dynamics of a single polariton and two polaritons in a two-ion chain. By driving two trapped ions at a motional blue-sideband transition, we rea…
Blockade of phonon hopping in trapped ions in the presence of multiple local phonons
Ryutaro Ohira, Shota Kume, Kyoichi Takayama +3
Driving an ion at a motional sideband transition induces the Jaynes--Cummings (JC) interaction. This JC interaction creates an anharmonic ladder of JC eigenstates, resulting in the…
Phonon-number-resolving Detection of Multiple Local Phonon Modes in Trapped Ions
Ryutaro Ohira, Takashi Mukaiyama, Kenji Toyoda
We propose and demonstrate phonon-number-resolving detection of the multiple local phonon modes in a trapped-ion chain. To mitigate the effect of phonon hopping during the detectio…
Quantum walks of a phonon in trapped ions
Masaya Tamura, Takashi Mukaiyama, Kenji Toyoda
Propagation and interference of quantum-mechanical particles comprise an important part of elementary processes in quantum physics, and their essence can be modeled using a quantum…
Breaking rotational symmetry in a trapped-ion quantum tunneling rotor
Ryutaro Ohira, Takashi Mukaiyama, Kenji Toyoda
A trapped-ion quantum tunneling rotor (QTR) is in a quantum superposition of two different Wigner crystal orientations. In a QTR system, quantum tunneling drives the coherent trans…