Abstract: When we estimate a quantum state, we normally use the quantum state tomography. However, this needs the post-information processing. Here, we propose a new idea on visualizing technique of the quantum state. Under the specific configuration, in which the optical vortex beam is used, we experimentally demonstrate the visualization of the specific two-dimensional quantum state; the polarized state of light by the weak measurement initiated by Yakir Aharonov and his colleagues.In this talk, we will talk about the introduction of quantum state, the standard technique of quantum state tomography especially developed in quantum information science, and our recent visualizing technique and experimental demonstration. This work is collaborated with Hirokazu Kobayashi (Kochi University of Technology).

 

About the Speaker: Yutaka Shikano is the research associate professor at Research Center of Integrative Molecular Systems (CIMoS), Institute for Molecular Science, National Institutes of Natural Sciences. He was the undergraduate and graduate student at Tokyo Institute of Technology (2003 - 2011). When he was the Ph.D student, he was the visiting student at Department of Mechanical Engineering, Massachusetts Institute of Technology (2009-2011) under the JSPS financial support. He got the Ph.D. from Tokyo Institute of Technology on September, 2011. He was the postdoctoral fellow at Tokyo Institute of Technology supported by JSPS (2011-2012). He joined the current institute (2012 - present). Also, he is now the visiting assistant professor at Institute for Quantum Studies, Chapman University.His main research interest is quantum foundations in theoretical physics, quantum optics, and mathematical physics.