[10a-N202-1~8] 3.9 Optical quantum physics and technologies

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10a-N202-7] Generation and measurement of a highly squeezed vacuum state
with a waveguide optical parametric amplifier

〇Kazuki Hirota¹, Geyongmin Ha¹, Takahiro Kashiwazaki², Taichi Yamasima², Pawphat Jaturaphagorn^3,1, Takumi Suzuki¹, Kazuma Takahashi¹, Akito Kawasaki^1,4,5, Takeshi Umeki², Mamoru Endo^1,4, Warit Assavanant^4,5, Akira Furusawa^1,4,5 (1.Tokyo Univ., 2.NTT Device Technology Labs, 3.Kasesart Univ., 4.OptQc, 5.RIKEN RQC)

Keywords:

Quantum Optics

ptical quantum computers are one of the promising platforms among various quantum information processing approaches. Our laboratory specifically focuses on research into measurement-induced continuous-variable quantum information processing. Squeezed vacuum states are one of the primary resources in this method, and noise dependent on the squeezing level of the used squeezed vacuum state occurs at each step of the computation. Therefore, squeezed vacuum states with a high squeezing level are indispensable for more accurate quantum information processing. In this study, we successfully measured a squeezed vacuum state with the highest squeezing level ever achieved for a waveguide OPA. In this presentation, we will discuss the generation and measurement methods.