Practically measurable quantities resulting from quantum field theory are not described by hermitian operators, contradicting one of the cornerstone axioms of orthodox quantum theory. This could be a sign that some of the axioms of orthodox quantum theory should be reformulated. A non-orthodox reformulation of quantum theory based on integral curves of particle currents is advocated and possible measurable manifestations are discussed. The consistency with particle creation and destruction requires particles to be extended objects, which can be viewed as a new derivation of string theory. Within this reformulation, an indirect low-energy test of string theory is also possible.
Observation of genuine $2+1$D string dynamics in a U$(1)$ lattice gauge theory with a tunable plaquette term on a trapped-ion quantum computer
Max Planck Institute of Quantum Optics（马克斯·普朗克量子光学研究所）；Department of Physics and Arnold Sommerfeld Center for Theoretical Physics (ASC), Ludwig Maximilian University of Munich（慕尼黑大学物理系与阿诺德·索末菲理论物理中心）；Munich Center for Quantum Science and Technology (MCQST)（慕尼黑量子科学与技术中心）；Quantinuum
Mani L. Bhaumik Institute for Theoretical Physics, Department of Physics and Astronomy, University of California Los Angeles（加州大学洛杉矶分校曼尼·L·巴乌米克理论物理研究所）；CERN, Theory Division（欧洲核子研究中心理论部）；Center for Theoretical Physics – a Leinweber Institute, Massachusetts Institute of Technology（麻省理工学院中心理论物理-莱因韦伯研究所）；Center of Mathematical Sciences and Applications, Harvard University（哈佛大学数学科学与应用中心）
Quantum Information Flow under String-Diagram Rewriting
Fudan Center for Mathematics and Interdisciplinary Study, Fudan University（复旦大学数学与交叉科学研究院）；Shanghai Institute for Mathematics and Interdisciplinary Sciences (SIMIS)（上海数学与交叉学科研究院）；Department of Physics , Fudan University（复旦大学物理系）
Indian Institute of Technology Kanpur（坎普尔印度理工学院）；Birla Institute of Technology and Science, Pilani Campus（比拉理工学院皮拉尼校区）；Beijing Institute of Mathematical Sciences and Applications（北京数学科学研究所）；Tata Institute of Fundamental Research（塔塔基础研究所）
Observation of glueball excitations and string breaking in a $2+1$D $\mathbb{Z}_2$ lattice gauge theory on a trapped-ion quantum computer
Max Planck Institute of Quantum Optics（马克斯·普朗克量子光学研究所）；Ludwig Maximilian University of Munich（慕尼黑大学）；Munich Center for Quantum Science and Technology (MCQST)（慕尼黑量子科学与技术中心）；Quantinuum；RIKEN Center for Quantum Computing (RQC), RIKEN（理研量子计算中心）
Black Holes, Gravitational Waves and Space-Time Singularities Lemaitre Conference 2024
Università di Roma ‘Tor Vergata’（罗马托尔维尔加塔大学）；INFN, Sezione di Roma Tor Vergata（罗马托尔维尔加塔意大利国家核物理研究所）；DiSAT, Università dell’Insubria（因苏布里亚大学 DiSAT 学院）；INFN, Sezione di Milano（米兰意大利国家核物理研究所）；Como Lake centre for AstroPhysics (CLAP)（科莫湖天体物理中心）；Vatican Observatory（梵蒂冈天文台）；INAF/OAS Bologna（博洛尼亚意大利国家天体物理研究所观测天文学与天体物理学部门）；INFN, Sezione di Bologna（博洛尼亚意大利国家核物理研究所）；Laboratori Nazionali di Frascati, INFN（弗拉斯卡蒂意大利国家核物理研究所）；Dipartimento di Matematica, Politecnico di Milano（米兰理工大学数学系）；Lorentz Institute for Theoretical Physics, Leiden University（莱顿大学洛伦兹理论物理研究所）
