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Title:
Ultra Quantum Matter to Beyond the Standard Model Forecast
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Abstract:
Ideas developed from the quantum matter and quantum field theory frontier may guide us to explore new physics beyond the 4d Standard Model. I propose a few such ideas. First, new physics for neutrinos: right-handed neutrinos carry a Z_{16} class mixed gauge-gravitational global anomaly index, which could be replaced by 4d or 5d topological quantum field theory, or 4d interacting conformal field theory (CFT). These theories provide possible new neutrino mass mechanisms [arXiv:2012.15860]. Second, deconfined quantum criticality between Grand Unified Theories: dictated by a Z_2 class global anomaly, a gapless quantum critical CFT region can happen between Georgi-Glashow and Pati-Salam models as deformation of the Standard Model, where Beyond the Standard Model physics and Dark Gauge sector occur as neighbor phases [arXiv:2106.16248, arXiv:2112.14765, arXiv:2204.08393]. I will also comment on the generalized higher symmetries and potential noninvertible symmetries pertinent to Grand Unified Theories. Third, the Strong CP problem may be solved by a new solution involving Symmetric Mass Generation [arXiv:2204.14271, arXiv:2207.14813, to appear].The collaborators of these works include Yuta Hamada, Zheyan Wan, and Yizhuang You.
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