## Video URL

https://pirsa.org/22020059# Ultra Unification: Quantum Criticality and Deformation beyond the Standard Model

### APA

Wang, J. (2022). Ultra Unification: Quantum Criticality and Deformation beyond the Standard Model. Perimeter Institute for Theoretical Physics. https://pirsa.org/22020059

### MLA

Wang, Juven. Ultra Unification: Quantum Criticality and Deformation beyond the Standard Model. Perimeter Institute for Theoretical Physics, Feb. 08, 2022, https://pirsa.org/22020059

### BibTex

@misc{ scivideos_PIRSA:22020059, doi = {10.48660/22020059}, url = {https://pirsa.org/22020059}, author = {Wang, Juven}, keywords = {Quantum Matter}, language = {en}, title = {Ultra Unification: Quantum Criticality and Deformation beyond the Standard Model}, publisher = {Perimeter Institute for Theoretical Physics}, year = {2022}, month = {feb}, note = {PIRSA:22020059 see, \url{https://scivideos.org/pirsa/22020059}} }

Juven Wang Harvard University

**Source Repository**PIRSA

**Collection**

**Talk Type**Scientific Series

**Subject**

## Abstract

We introduce a viewpoint that the Standard Model (SM) is a low-energy quantum vacuum arising from various neighbor Grand Unification (GUT) like vacua competition in an immense quantum phase diagram. In general, we find the SM arises near the gapless quantum critical regions between the competing neighbor vacua. Alternatively, we can also phrase this viewpoint in terms of the deformation class of quantum field theory (QFT), specified by its symmetry G and its anomaly (i.e., cobordism invariant). Seemly different QFTs of the same deformation class can be deformed to each other via quantum phase transitions. We show that GUT such as Georgi-Glashow su(5), Pati-Salam su(4)×su(2)×su(2), Barr’s flipped u(5), and familiar or modified so(n) models of Spin(n) gauge group, e.g., with n = 10, 18 can all reside in an appropriate SM deformation class, labeled by Z_{16} and Z_2 nonperturbative global anomaly index. We show that Ultra Unification, which replaces some of sterile neutrinos with new exotic gapped/gapless sectors (e.g., topological or conformal field theory) or gravitational sectors with topological origins via cobordism constraints, also resides in an SM deformation class. Neighbor quantum phases near SM or their phase transitions, and neighbor gauge enhanced gapless quantum criticality naturally exhibit beyond SM phenomena. We give a new proposal on the neutrino mass origin. The talk is mainly based on: arxiv 1910.14668, 2006.16996, 2008.06499, 2012.15860, 2106.16248, 2111.10369, 2112.14765. Some of these works are in collaboration with Zheyan Wan and Yi-Zhuang You.

Zoom Link: https://pitp.zoom.us/j/94634619703?pwd=VWlWZHNIMm1sS2owWnlhSmhZTTNvUT09