Topological quantum chemistry
- B. Bradlyn, L. Elcoro, B. Bernevig
- PhysicsNature
- 6 March 2017
A complete electronic band theory is proposed, which builds on the conventional band theory of electrons, highlighting the link between the topology and local chemical bonding and can be used to predict many more topological insulators.
What is Gab: A Bastion of Free Speech or an Alt-Right Echo Chamber
- Savvas Zannettou, B. Bradlyn, J. Blackburn
- Computer ScienceThe Web Conference
- 14 February 2018
Gab is predominantly used for the dissemination and discussion of news and world events, and that it attracts alt-right users, conspiracy theorists, and other trolls, and the prevalence of hate speech is found to be much higher than Twitter, but lower than 4chan's Politically Incorrect board.
Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals
- B. Bradlyn, Jennifer Cano, B. Bernevig
- PhysicsScience
- 9 March 2016
The guiding principle of the classification is to find irreducible representations of the little group of lattice symmetries at high-symmetry points in the Brillouin zone for each of the 230 space groups (SGs), the dimension of which corresponds to the number of bands that meet at the high-Symmetry point.
Kubo formulas for viscosity: Hall viscosity, Ward identities, and the relation with conductivity
- B. Bradlyn, M. Goldstein, N. Read
- Physics
- 30 July 2012
We derive from first principles the Kubo formulas for the stress-stress response function at zero wavevector that can be used to define the full complex frequency-dependent viscosity tensor, both…
A Quantitative Approach to Understanding Online Antisemitism
- Joel Finkelstein, Savvas Zannettou, B. Bradlyn, J. Blackburn
- Computer ScienceInternational Conference on Web and Social Media
- 5 September 2018
A large-scale, quantitative study of online antisemitism, collecting hundreds of million posts and images from alt-right Web communities like 4chan's Politically Incorrect board (/pol/) and Gab to quantify the escalation and spread of antisemitic memes and rhetoric across the Web.
Low-energy effective theory in the bulk for transport in a topological phase
- B. Bradlyn, N. Read
- Physics
- 10 July 2014
We construct a low-energy effective action for a two-dimensional non-relativistic topological (i.e.\ gapped) phase of matter in a continuum, which completely describes all of its bulk electrical,…
Magnetic topological quantum chemistry
- L. Elcoro, Benjamin J. Wieder, Zhida Song, Yuanfeng Xu, B. Bradlyn, B. Bernevig
- Materials ScienceNature Communications
- 3 March 2020
This work completes the 100-year-old problem of crystalline group theory by deriving the small core presentations, momentum stars, compatibility relations, and magnetic elementary band corepresentations of the 1,421 magnetic space groups (MSGs), which are made freely accessible through tools on the Bilbao Crystallographic Server.
The Evolution of the Manosphere across the Web
- Manoel Horta Ribeiro, J. Blackburn, Savvas Zannettou
- Computer ScienceInternational Conference on Web and Social Media
- 21 January 2020
A large-scale characterization of the Manosphere is presented, finding that milder and older communities, such as Pick Up Artists and Men's Rights Activists, are giving way to more extreme ones like Incels and Men Going Their Own Way, with a substantial migration of active users.
Geometry and Response of Lindbladians
- Victor V. Albert, B. Bradlyn, M. Fraas, Liang Jiang
- Physics
- 26 December 2015
Researchers determine how the steady states of a quantum system with multiple such states depend on the initial properties of the system.
Chiral anomaly factory: Creating Weyl fermions with a magnetic field
- Jennifer Cano, B. Bradlyn, Zhijun Wang, Maximillian Hirschberger, N. Ong, B. Bernevig
- Physics
- 28 April 2016
Weyl fermions can be created in materials with both time reversal and inversion symmetry by applying a magnetic field, as evidenced by recent measurements of anomalous negative magnetoresistance.…
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