290 citations · 755 across the 11 of their papers we have counts for
11 papers
Ferromagnetic levitation and harmonic trapping of a milligram-scale Yttrium Iron Garnet sphere
Maria Fuwa, Ryosuke Sakagami, Tsuyoshi Tamegai
We report passive magnetic levitation and three-dimensional harmonic trapping of a 0.3 milligram, 0.5 millimeter diameter Yttrium Iron Garnet sphere at 4 K. The gradient of an exte…
Stable magnetic levitation of soft ferromagnets for macroscopic quantum mechanics
Maria Fuwa
We propose a system for passive magnetic levitation and three-dimensional harmonic trapping of soft ferromagnets. Our protocol utilizes the magnetic field gradient for vertical tra…
Superconducting Acousto-optic Phase Modulator
Ayato Okada, Rekishu Yamazaki, Maria Fuwa +9
We report the development of a superconducting acousto-optic phase modulator fabricated on a lithium niobate substrate. A titanium-diffused optical waveguide is placed in a surface…
Heralded creation of photonic qudits from parametric down conversion using linear optics
Jun-ichi Yoshikawa, Marcel Bergmann, Peter van Loock +7
We propose an experimental scheme to generate, in a heralded fashion, arbitrary quantum superpositions of two-mode optical states with a fixed total photon number based on weak…
Experimental Proof of Nonlocal Wavefunction Collapse for a Single Particle Using Homodyne Measurement
Maria Fuwa, Shuntaro Takeda, Marcin Zwierz +2
A single quantum particle can be described by a wavefunction that spreads over arbitrarily large distances, but it is never detected in two (or more) places. This strange phenomeno…
Analog of the Clauser-Horne-Shimony-Holt inequality for steering
Eric G. Cavalcanti, Christopher J. Foster, Maria Fuwa +1
The Clauser-Horne-Shimony-Holt (CHSH) inequality (and its permutations), are necessary and sufficient criteria for Bell nonlocality in the simplest Bell-nonlocality scenario: 2 par…
Entanglement swapping between discrete and continuous variables
Shuntaro Takeda, Maria Fuwa, Peter van Loock +1
We experimentally realize "hybrid" entanglement swapping between discrete-variable (DV) and continuous-variable (CV) optical systems. DV two-mode entanglement as obtainable from a…
Noiseless conditional teleportation of a single photon
Maria Fuwa, Shunsuke Toba, Shuntaro Takeda +6
We experimentally demonstrate the noiseless teleportation of a single photon by conditioning on quadrature Bell measurement results near the origin in phase space and thereby circu…
Deterministic quantum teleportation of photonic quantum bits by a hybrid technique
Shuntaro Takeda, Takahiro Mizuta, Maria Fuwa +2
Quantum teleportation allows for the transfer of arbitrary, in principle, unknown quantum states from a sender to a spatially distant receiver, who share an entangled state and can…
Gain tuning for continuous-variable quantum teleportation of discrete-variable states
Shuntaro Takeda, Takahiro Mizuta, Maria Fuwa +3
We present a general formalism to describe continuous-variable (CV) quantum teleportation of discrete-variable (DV) states with gain tuning, taking into account experimental imperf…
Generation and Eight-port Homodyne Characterization of Time-bin Qubits for Continuous-variable Quantum Information Processing
Shuntaro Takeda, Takahiro Mizuta, Maria Fuwa +3
We experimentally generate arbitrary time-bin qubits using continuous-wave light. The advantage unique to our qubit is its compatibility with deterministic continuous-variable quan…