We introduce a new primitive, called welding, for combining two stabilizer codes to produce a new stabilizer code. We apply welding to construct surface codes and then use the surface codes to construct solid codes, a variant of a 3-d toric code with rough and smooth boundaries. Finally, we weld solid codes together to produce a $(O(L^3),1,O(L^{4/3}))$ stabilizer code with an energy barrier of $O(L^{2/3})$, which solves an open problem of whether a power law energy barrier is possible for local stabilizer code Hamiltonians in three-dimensions. The previous highest energy barrier is $O(\log L)$. Previous no-go results are avoided by breaking translation invariance.
Entanglement of superpositions in zero-energy subspace: insights from stabilizer theory
Faculty of Physics, M.V. Lomonosov Moscow State University(莫斯科国立大学物理系);Skolkovo Institute of Science and Technology(斯科尔科沃科学技术研究所);Artificial Intelligence Research Institute (AIRI)(人工智能研究院)
Invariant Measures and Weak-Magic-Injection Asymptotics in Random Monitored Quantum Circuits
The Hong Kong University of Science and Technology (Guangzhou)(香港科技大学(广州));QudeLeap Research(酷跃研究);Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area(粤港澳大湾区量子科学中心)
Post-Quantum Cryptography from Quantum Stabilizer Decoding
Massachusetts Institute of Technology(麻省理工学院);Boston University(波士顿大学);École Polytechnique Fédérale de Lausanne(洛桑联邦理工学院);California Institute of Technology(加州理工学院)
Neural Quantum States in Non-Stabilizer Regimes: Benchmarks with Atomic Nuclei
Universität Bielefeld(比勒费尔德大学);Argonne National Laboratory(阿贡国家实验室);INFN-TIFPA Trento Institute for Fundamental Physics and Applications(特伦托基础物理与应用研究所);GSI Helmholtzzentrum für Schwerionenforschung(重离子研究中心)
Binary Gauss Stabilizers for Abelian Lattice Gauge Theories
Instituto Superior Técnico, Universidade de Lisboa(里斯本大学高等技术学院);PQI – Portuguese Quantum Institute(葡萄牙量子研究所);Centro de Física e Engenharia de Materiais Avançados (CeFEMA)(先进材料与工程物理中心);University of Trento(特伦托大学);INFN-TIFPA Trento Institute of Fundamental Physics and Applications(特伦托基础物理与应用研究所)
Quantum advantage unlocked: Charging quantum batteries with K-regular graph stabilizers
Harish-Chandra Research Institute(哈立什-昌德拉研究所);Homi Bhabha National Institute(霍米·巴巴国立研究所);Mark Kac Complex Systems Research Center, Jagiellonian University in Kraków(雅盖隆大学马克·卡克复杂系统研究中心);Dipartimento di Fisica e Astronomia, Università di Padova(帕多瓦大学物理与天文学系);Department of Physics, Indian Institute of Technology Palakkad(印度理工学院帕拉卡德分校物理系)
Entanglement Barriers from Computational Complexity: Matrix-Product-State Approach to Satisfiability
Technische Universität Dresden(德累斯顿工业大学);Technical University of Munich(慕尼黑工业大学);Munich Center for Quantum Science and Technology (MCQST)(慕尼黑量子科学与技术中心);Max Planck Institute for the Physics of Complex Systems(马普复杂系统物理研究所)
Layer codes as partially self-correcting quantum memories
Yale Quantum Institute & Department of Applied Physics, Yale University(耶鲁大学应用物理系与耶鲁量子研究所);School of Computation, Information and Technology, Technical University of Munich(慕尼黑工业大学计算、信息与技术学院);Munich Center for Quantum Science and Technology(慕尼黑量子科学与技术中心);IQM Quantum Computers(IQM量子计算机公司);Department of Mathematics, Massachusetts Institute of Technology(麻省理工学院数学系);Departments of Mathematics & Physics, Northeastern University(东北大学数学与物理系)
Nonstabilizerness of quantum tensor network states is intractable in two dimensions
Scuola Superiore Meridionale(南方高等学院);Istituto Nazionale di Fisica Nucleare, Sezione di Napoli(意大利国家核物理研究所那不勒斯分部);Max Planck Institute of Quantum Optics(马克斯·普朗克量子光学研究所);Munich Center for Quantum Science and Technology(慕尼黑量子科学与工程中心)
Max Planck Institute of Quantum Optics(马克斯·普朗克量子光学研究所);Munich Center for Quantum Science and Technology (MCQST)(慕尼黑量子科学与工程中心);Department of Physics, Duke University(杜克大学物理系);Institut für Theoretische Physik, Universität Regensburg(雷根斯堡大学理论物理研究所);Department of Physics, National Taiwan University(台湾大学物理系);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);InQubator for Quantum Simulation, Department of Physics, University of Washington(华盛顿大学物理系量子模拟创新中心)
Transversal non-Clifford gates on qLDPC codes breaking the $\sqrt{N}$ distance barrier and quantum-inspired geometry with $\mathbb{Z}_2$ systolic freedom