102 citations · 1.1k across the 41 of their papers we have counts for
16 papers · 1 filter
Observation of nonlinear variations in three-vertex geometric phase in two-photon polarization qutrit
Kazuhisa Ogawa, Shuhei Tamate, Hirokazu Kobayashi +2
We experimentally observed nonlinear variations in the three-vertex geometric phase in a two- photon polarization qutrit. The three-vertex geometric phase is defined by three quant…
Classical Realization of Dispersion Cancellation by Time-Reversal Method
Kazuhisa Ogawa, Shuhei Tamate, Toshihiro Nakanishi +2
We propose a classical optical interferometry scheme that reproduces dispersion-insensitive Hong-Ou-Mandel interferograms. The interferometric scheme is derived from a systematic m…
Time-reversed two-photon interferometry for phase super-resolution
Kazuhisa Ogawa, Shuhei Tamate, Hirokazu Kobayashi +2
We observed two-photon phase super-resolution in an unbalanced Michelson interferometer with classical Gaussian laser pulses. Our work is a time-reversed version of a two-photon in…
Weak measurements with completely mixed probe states
Shuhei Tamate, Toshihiro Nakanishi, Masao Kitano
Weak measurements with mixed probe states were investigated in the presence of noise in the probe system. We show that the completely mixed state can be used as a probe state for w…
Bloch sphere representation of three-vertex geometric phases
Shuhei Tamate, Kazuhisa Ogawa, Masao Kitano
The properties of the geometric phases between three quantum states are investigated in a high-dimensional Hilbert space using the Majorana representation of symmetric quantum stat…
Nonlinear behavior of geometric phases induced by photon pairs
H. Kobayashi, Y. Ikeda, S. Tamate +2
In this study, we observe the nonlinear behavior of the two-photon geometric phase for polarization states using time-correlated photons pairs. This phase manifests as a shift of t…