What we’re about
This is a group for anyone who has ever rigorously studied physics – or has wanted to. Here's why you'd want to join us:
- If you feel like physics is the most interesting and most difficult subject that there is;
- If you're burning with a desire to deeply understand the universe at its smallest and largest scales;
- And if you thrive in an environment of learning through collaboration with people like yourself...
... then you've found the right place!
Join us to participate in lively discussions and learn core material in serious study groups. We offer multiple tracks of study, regularly host special events and talks, and are constantly tweaking the meetup to make it more useful. We also stay in touch between meetings to motivate and help each other continue learning.
Everyone is welcome from every level of experience! Many of us are (re)discovering physics after college (sometimes long after) and it can be easy to feel rusty or underqualified. Don't fall into that false narrative! If you think some of the material in this meetup is too advanced, we want you to join us so that we can help you learn!
Upcoming events
228
•OnlineWeekly Open Self-Study & Office Hours for Previous Attendees
OnlineThis is a weekly Zoom meeting (see below for link) for anyone who's already attended our previous meetups to have (mostly-)quiet self-study time on any topic in physics or math. The goal is to recreate the feeling of being in the same study room together, just like in college. So leave your camera on! You may come and go at any time during study hours.
Unlike our other events, this is not a facilitated or structured event and there is no specific topic of study. Sometimes people may decide to work on the same topic together, and other times everyone will be reading or solving problems on their own.
Although this is primarily a quiet study session, talking is allowed as long as it's on the topic(s) of study and with the purpose of asking a question or helping someone. Otherwise, please be courteous and respectful of other people by leaving your microphone off.
This event complements our other meetups, which are subject-specific, structured learning environments.
If you are new to Physics With Friends, before coming to this quiet self-study event we ask that you please come to one of our other meetups first so that we can get to know one another.
*** ZOOM LINK ***
The Zoom meeting URL is a pinned message in the #study-buddies channel. If you don't know what this means, it's because we haven't met you yet. Please come to one of our meetups and we'll help you get set up.3 attendees
•OnlineCourse on General Relativity and Differential Geometry
OnlineJoin us for a structured study of general relativity, including important concepts from differential geometry. We’re following the MIT OpenCourseWare General Relavitity class, which includes comprehensive video lectures, lecture notes, and assignments. These will be supplemented by the various textbooks and resources that you and your fellow students bring to the group.
What to expect – Here is our current format:
- Before each meeting, we will assign ourselves a lecture to watch and a set of exercises that everyone is invited to try for next time. (All of this is optional and there is never anything expected or required – this is a self-study group!)
- During the meeting, one or more volunteers will teach the lesson(s) in their own words, and others will present their solutions to (or attempts at!) the exercises.
- Between meetings, we will collaborate through our chat server and/or small study sessions during "office hours". New members should especially take advantage of these to get up to speed. Ask us for details and links to these fantastic resources!
Additional resources that many of us are using:
- Modern General Relativity by Guidry
- Visual Differential Geometry and Forms by Needham
- Gravitation by Misner, Thorne, and Wheeler
If you have just found this event and are worried that you're too far behind, don't worry! Our meetups are expressly structured to encourage and invite people to join us at any point and at any level of prior knowledge, as long as you've had at least some exposure to calculus and basic physics in the past. You are definitely welcome here!
We also maintain a live chat server for staying in touch between meetups. Ask us for a link.
This event is one of the many other collaborative study tracks in our Physics With Friends community. Check out all of our other events to find additional physics topics that you might want to study together!
Please note that the Relativity & Differential Geometry meetup series is a highly mathematical meetup for everyone who is serious about learning the advanced branches of math and physics that one needs to master in order to deeply understand the equations and applications of relativity. It is not a general discussion group for popular physics topics or sci-fi tangents. For casual physics chat, please attend our regular "Discuss Physics and Make Friends" event, held every third Wednesday of the month.4 attendees
•OnlineMath Methods for Physics
OnlineThis weekly study track explores the mathematical tools that can be applied to physics problems. The main text for this study track is Zee's Group Theory in a Nutshell for Physicists (previously Mathematical Methods in the Physical Sciences by Mary L. Boas). Each week, we pick some book material to cover and/or problems to solve and discuss.
These meetings are primarily question-driven, meaning that we seek to answer each other's questions about problems/topics that we have already given some effort to understand. When we cover new material from the book, at least one volunteer will give a quick summary of that material at the beginning of the meeting before we dive into individual questions. When we solve problems, individuals will present any blockers they had so that the group can help unblock them.
If you have just found this event and don't think you are caught up in material, feel free to still drop in a shadow! Everyone is welcome.
We also maintain a live chat server for staying in touch between meetups. Ask us for a link.
This event is one of the many other collaborative study tracks in our Physics With Friends community. Check out all of our other events to find additional physics topics that you might want to study together!
Please note that the Math Methods in Physics meetup series is a highly mathematical meetup for everyone who is serious about learning the advanced branches of math and physics that one needs to master in order to deeply understand the tools used in solving real problems. It is not a general discussion group for popular physics topics or sci-fi tangents. For casual physics chat, please attend our regular "Discuss Physics and Make Friends" event, held every third Wednesday of the month.4 attendees
•OnlineQuantum Information Theory
OnlineQuantum Information Theory is the study of how information is represented, transmitted, and processed in systems governed by the principles of quantum mechanics. It extends classical information theory to account for quantum phenomena such as superposition, entanglement, and non-locality, enabling tasks like quantum computation, quantum communication, and quantum cryptography. It involves calculating and proving bounds and limits on what is possible and is used as a guide in developing practical schemes.
TIMES:
Weekly on Thursdays from 5-6:30 pm US West Coast Pacific time. May switch to semi-biweekly later in the talks as we get into heavier technical material. Begins Thursday, March 20, 2025.
GOAL:
To be able to read and understand textbooks at the level of Watrous and Wilde (below). After the course, the material in Preskill's chapter 10, Quantum Shannon Theory, would be understandable. https://www.preskill.caltech.edu/ph219/chap10_6A_2022.pdf
SYLLABUS:
The material will be covered in three parts. We will focus more on solving problems and exercises as we get into the heavier technical material.
1. Introduction to information theory. (4-6 weeks)
2. Introduction to quantum information theory. (~16 weeks)
3. Advanced quantum information theory. (~30 weeks)
TEXTS:
Introduction to information theory:
- T. M. Cover and J. A. Thomas, Elements of information theory, 2nd ed. Hoboken, N.J: Wiley-Interscience, 2006.
Introduction to quantum information theory:
- M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information: 10th Anniversary Edition, Anniversary edition. Cambridge ; New York: Cambridge University Press, 2011.
Advanced quantum information theory:
- S. Khatri, L. Lami, and M. M. Wilde, Principles of Quantum Communication Theory: A Modern Approach. Latest version: https://markwilde.com/PQCT-khatri-lami-wilde.pdf
- J. Watrous, The Theory of Quantum Information, 1st ed. Cambridge University Press, 2018. doi: 10.1017/9781316848142.
- M. M. Wilde, Quantum Information Theory, 2nd edition. Cambridge: Cambridge University Press, 2017.
SURVEY:
Please complete the following short survey. It gives me an idea of the background of people interested in participating. https://forms.gle/GJk6KCc9dyyhmUeq511 attendees
Past events
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