{"publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"external_id":{"isi":["000975799300006"],"arxiv":["2207.13130"]},"doi":"10.1103/PhysRevA.107.042216","author":[{"orcid":"0000-0003-4982-5970","full_name":"Suzuki, Fumika","id":"650C99FC-1079-11EA-A3C0-73AE3DDC885E","last_name":"Suzuki","first_name":"Fumika"},{"full_name":"Unruh, William G.","last_name":"Unruh","first_name":"William G."}],"publication":"Physical Review A","language":[{"iso":"eng"}],"_id":"12914","article_number":"042216","ec_funded":1,"article_type":"original","citation":{"ieee":"F. Suzuki and W. G. Unruh, “Numerical quantum clock simulations for measuring tunneling times,” <i>Physical Review A</i>, vol. 107, no. 4. American Physical Society, 2023.","mla":"Suzuki, Fumika, and William G. Unruh. “Numerical Quantum Clock Simulations for Measuring Tunneling Times.” <i>Physical Review A</i>, vol. 107, no. 4, 042216, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/PhysRevA.107.042216\">10.1103/PhysRevA.107.042216</a>.","short":"F. Suzuki, W.G. Unruh, Physical Review A 107 (2023).","apa":"Suzuki, F., &#38; Unruh, W. G. (2023). Numerical quantum clock simulations for measuring tunneling times. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.107.042216\">https://doi.org/10.1103/PhysRevA.107.042216</a>","ista":"Suzuki F, Unruh WG. 2023. Numerical quantum clock simulations for measuring tunneling times. Physical Review A. 107(4), 042216.","chicago":"Suzuki, Fumika, and William G. Unruh. “Numerical Quantum Clock Simulations for Measuring Tunneling Times.” <i>Physical Review A</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/PhysRevA.107.042216\">https://doi.org/10.1103/PhysRevA.107.042216</a>.","ama":"Suzuki F, Unruh WG. Numerical quantum clock simulations for measuring tunneling times. <i>Physical Review A</i>. 2023;107(4). doi:<a href=\"https://doi.org/10.1103/PhysRevA.107.042216\">10.1103/PhysRevA.107.042216</a>"},"year":"2023","volume":107,"intvolume":"       107","project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","call_identifier":"H2020"}],"acknowledgement":"We thank W. H. Zurek, N. Sinitsyn, M. O. Scully, M. Arndt, and C. H. Marrows for helpful discussions. F.S. acknowledges support from the Los Alamos National Laboratory LDRD program under Project No. 20230049DR and the Center for Nonlinear Studies. F.S. also thanks the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant No. 754411 for support. W.G.U. thanks the Natural Science and Engineering Research Council of Canada, the Hagler Institute of Texas A&M University, the Helmholz Inst HZDR, Germany for support while this work was being done.","isi":1,"date_updated":"2023-08-01T14:33:21Z","month":"04","article_processing_charge":"No","day":"20","type":"journal_article","abstract":[{"lang":"eng","text":"We numerically study two methods of measuring tunneling times using a quantum clock. In the conventional method using the Larmor clock, we show that the Larmor tunneling time can be shorter for higher tunneling barriers. In the second method, we study the probability of a spin-flip of a particle when it is transmitted through a potential barrier including a spatially rotating field interacting with its spin. According to the adiabatic theorem, the probability depends on the velocity of the particle inside the barrier. It is numerically observed that the probability increases for higher barriers, which is consistent with the result obtained by the Larmor clock. By comparing outcomes for different initial spin states, we suggest that one of the main causes of the apparent decrease in the tunneling time can be the filtering effect occurring at the end of the barrier."}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2207.13130"}],"department":[{"_id":"MiLe"}],"issue":"4","date_published":"2023-04-20T00:00:00Z","publication_status":"published","scopus_import":"1","publisher":"American Physical Society","date_created":"2023-05-07T22:01:03Z","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","oa":1,"oa_version":"Preprint","status":"public","title":"Numerical quantum clock simulations for measuring tunneling times","quality_controlled":"1"}