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Quantum Electrodynamics from Quantum Cellular Automata, and the Tension Between Symmetry, Locality, and Positive Energy [PDF]
EntropyRecent work has demonstrated a correspondence that bridges quantum information processing and high-energy physics: discrete quantum cellular automata (QCA) can, in the continuum limit, reproduce quantum field theories (QFTs).
Todd A. Brun, Leonard Mlodinow
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Quantum magnetic monopole condensate
Communications Physics, 2021 Magnetic monopoles are predicted by grand unified theories but remain elusive as elementary particles. Here, extending electric-magnetic symmetry onto full quantum behavior, the authors demonstrate that magnetic monopoles emerge as excitations in ...
M. C. Diamantini +2 more
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General Quantum Resource Theories: Distillation, Formation and Consistent Resource Measures [PDF]
Quantum, 2020 Quantum resource theories (QRTs) provide a unified theoretical framework for understanding inherent quantum-mechanical properties that serve as resources in quantum information processing, but resources motivated by physics may possess structure whose ...
Kohdai Kuroiwa, Hayata Yamasaki
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Physical Review X, 2023 The correlation functions of quantum systems—central objects in quantum field theories—are defined in high-dimensional space-time domains. Their numerical treatment thus suffers from the curse of dimensionality, which hinders the application of ...
Hiroshi Shinaoka +6 more
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Scaling solution for field-dependent gauge couplings in quantum gravity
Nuclear Physics B, 2022 Quantum gravity can determine the dependence of gauge couplings in a scalar field, which is related to possible fifth forces and time varying fundamental “constants”. This prediction is based on the scaling solution of functional flow equations.
C. Wetterich
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Does a Theory of Everything Exist?
Философия и космология, 2021 Since Einstein’s failure to define a Grand Unified Theory, physicists have pursued a comprehensive theory explaining nature, a Theory of Everything. But because General Relativity, Quantum Field Theory, and Cosmology have little in common, defining one ...
James R Johnson
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Quaternionic quantum mechanics for N = 1, 2, 4 supersymmetry
Beni-Suef University Journal of Basic and Applied Sciences, 2022 Background Quaternions have emerged as powerful tools in higher-dimensional quantum mechanics as they provide homogeneous four-dimensional structure in quantum field theories, offer compact representations, and incorporate spin naturally.
Seema Rawat, A. S. Rawat
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Modified dispersion relations and a potential explanation of the EDGES anomaly
European Physical Journal C: Particles and Fields, 2022 The Experiment to Detect the Global Epoch of Reionisation Signature (EDGES) collaboration has recently reported an important result related to the absorption signal in the Cosmic Microwave Background radiation spectrum. This signal corresponds to the red-
Saurya Das +4 more
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New Journal of Physics, 2021 In this article, we present a unified reciprocal quantum electrodynamics (QED) formulation of free-electron and quantum–light interaction. For electron–light interactions, we bridge the underlying theories of photon-induced near-field electron microscopy,
Yiming Pan, Avraham Gover
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Chern-Weil global symmetries and how quantum gravity avoids them
Journal of High Energy Physics, 2021 We draw attention to a class of generalized global symmetries, which we call “Chern-Weil global symmetries,” that arise ubiquitously in gauge theories. The Noether currents of these Chern-Weil global symmetries are given by wedge products of gauge field ...
Ben Heidenreich +5 more
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