6 papers
Efficient Fault-Tolerant Ancilla Preparation for Quantum BCH codes via Cyclic Symmetry
Kohei Yamamoto, Keisuke Fujii
One of the major challenges in realizing fault-tolerant quantum computers (FTQCs) is the requirement for a large number of physical qubits. To address this issue, high-rate quantum…
Experimental Demonstration of an On-Axis Laser Ranging Interferometer for Future Gravity Missions
Daikang Wei, Christoph Bode, Kohei Yamamoto +6
We experimentally demonstrate a novel interferometric architecture for next-generation gravity missions, featuring a laser ranging interferometer (LRI) that enables monoaxial trans…
Observable-based reformulation of time-delay interferometry
Kohei Yamamoto, Jan Niklas Reinhardt, Olaf Hartwig
Spaceborne gravitational-wave observatories utilize a postprocessing technique known as time-delay interferometry (TDI) to reduce the otherwise overwhelming laser frequency noise b…
Experimental end-to-end demonstration of intersatellite absolute ranging for LISA
Kohei Yamamoto, Iouri Bykov, Jan Niklas Reinhardt +10
The Laser Interferometer Space Antenna (LISA) is a gravitational wave detector in space. It relies on a post-processing technique named time-delay interferometry (TDI) to suppress…
Time-delay interferometry with onboard optical delays
Jan Niklas Reinhardt, Philipp Euringer, Olaf Hartwig +3
Time-delay interferometry (TDI) is a data processing technique for space-based gravitational-wave detectors to create laser-noise-free equal-optical-path-length interferometers vir…
Single-Element Dual-Interferometer for Precision Inertial Sensing: Sub-picometer Structural Stability and Performance as a Reference for Laser Frequency Stabilization
Victor Huarcaya, Miguel Dovale Álvarez, Kohei Yamamoto +7
To reach sub-picometer sensitivity in the millihertz range, displacement sensors based on laser interferometry require suppression of laser-frequency noise by several orders of mag…