Re: [QMatter in Math/Physics Jan 24 Tue 1:15 - 2:45 pm ET] Jacob McNamara (Caltech) + Matthew Reece (Harvard) Reflections on Parity Breaking

Re: [QMatter in Math/Physics Jan 24 Tue 1:15 - 2:45 pm ET] Jacob McNamara (Caltech) + Matthew Reece (Harvard) Reflections on Parity Breaking - on Harvard CMSA ZOOM 977347126

Subject: Re: [QMatter in Math/Physics Jan 24 Tue 1:15 - 2:45 pm ET] Jacob McNamara (Caltech) + Matthew Reece (Harvard) Reflections on Parity Breaking - on Harvard CMSA ZOOM 977347126

From: Juven Wang <jw cmsa fas harvard edu>

Date: Tue, 24 Jan 2023 11:54:01 -0500

Bcc: bapc-late cosmos phy tufts edu

Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmsa-fas-harvard-edu.20210112.gappssmtp.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=WRwEqRW2t7v9W1wCKQ3kovalXTG2LVgh5g35qhm7EiM=; b=zk8p8kcgT7+mf0jUh7cv3YJWJr0Wrshe8KzoQOA794S2FiVwAb18DDxdEIX2B0Lh8f ZIc0ZoFhLQL5Bl/2H1pBjwwIDLbFa+YOaoEi1/4elmrgLss18wEes4jTU+EnbHmNlWqg mY1eFUTPRV4P72c/aH+lN1u05dfIK7BJ5H/fIWHvp6KQjgIfPOXi+AUlKM8eTTdCFLie KQ4Vhb1UrlPctykCYW4jCpa44awa5XmxGfgqKP9ztujxxLixmFlYK241OdYplDU4JRAg 6JFH2zaSycYEA7xydBFy9XWUOqjlrVixSE/Q01sBnYW7Qrbvfy6HoozUxiA/XfbwjyEX RooA==

In-reply-to: <CALDQRnjDB-ZBYpKgWiJzgTYp3AvrG-Bp==ZHeJ0gkTNqyhV4Ag@mail.gmail.com>

List-archive: <http://cosmos.phy.tufts.edu/mhonarc/bapc/>

List-help: <mailto:bapc-request@cosmos.phy.tufts.edu?subject=help>

List-id: Boston Area Physics Calendar <bapc.cosmos.phy.tufts.edu>

List-subscribe: <https://cosmos.phy.tufts.edu/mailman/listinfo/bapc>, <mailto:bapc-request@cosmos.phy.tufts.edu?subject=subscribe>

List-unsubscribe: <https://cosmos.phy.tufts.edu/mailman/options/bapc>, <mailto:bapc-request@cosmos.phy.tufts.edu?subject=unsubscribe>

References: <CALDQRnhq6tvUU-Kf3PNA3ba19XxG4m3c3vc7K_NE_q5ro90NFw@mail.gmail.com> <CALDQRnjcHEx0k-j3gPZMUFSJe3vATRrn1X65Qf+8vu-nAk26jw@mail.gmail.com> <CALDQRnjDB-ZBYpKgWiJzgTYp3AvrG-Bp==ZHeJ0gkTNqyhV4Ag@mail.gmail.com>

Last Reminder: In about 1 hour.

On Wed, Jan 18, 2023 at 11:03 PM Juven Wang <jw cmsa fas harvard edu> wrote:
Please circulate!

Quantum Matter in Mathematics and Physics (QMMP) 2023!
https://cmsa.fas.harvard.edu/event_category/quantum-matter-seminar/

-----
Time: Jan 24, Tue 1:15 pm - 2:45 pm ET
Zoom: https://harvard.zoom.us/j/977347126
Password: cmsa
-----

Speakers:
Jacob McNamara (Caltech) and Matthew Reece (Harvard)

Title: Reflections on Parity Breaking

Abstract: One approach to the Strong CP Problem (known as Nelson-Barr models) is to assume that parity is a gauge symmetry, which is spontaneously broken in the world around us. In this talk, we will describe the formal meaning of parity as a gauge symmetry, and argue that the domain walls formed from spontaneous parity breaking are exactly stable. This stability can be understood as the result of an unusual sort of conserved charge, which has features in common with both gauge charges and global charges. We will explain how these charges are compatible with the expected absence of global symmetries in quantum gravity, as well as their relationship with the Swampland Cobordism Conjecture.

--------
Subscribe to Harvard CMSA Quantum Matter and other seminar videos
(more to be uploaded):
https://www.youtube.com/playlist?list=PL0NRmB0fnLJQAnYwkpt9PN2PBKx4rvdup

Subscribe to Harvard CMSA seminar mailing list:
https://forms.gle/1ewa7KeP6BxBuBeRA