
Matthew Weiss
heyredhat@gmail.com
matthew.weiss001@umb.edu
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About Me

I'm a fourth year PhD student in the Computational Sciences program (Physics track) at the University of Massachusetts, Boston. I work primarily on quantum foundations, and am guided by the philosophy behind QBism, an interpretation of quantum mechanics that views quantum theory as a set of normative rules exceedingly useful for living in an world whose creation is ceaseless. My advisor is Christopher Fuchs.
Research Topics
- Real vector space quantum mechanics.
- Generalized probabilistic theories.
- Coherent state and IC-POVM representations: deforming the Law of Total Probability.
- Qplexes: motivating the shape of quantum state space.
- Generalized matrix inverses.
- MUBs and SICs, frames, designs.
- Measures of magic.
- Postclassical modeling in the human sciences.
- Quantum mechanics according to a 3-design.

Papers
- Fuchs, Christopher A., Maxim Olshanii, and Matthew B. Weiss. Quantum mechanics? It's all fun and games until someone loses an i.arXiv:2206.15343 (2022). Published in the Asian Journal of Physics, Vol. 30, Issue 12, p. 1707-1726.
- Matthew B. Weiss. Depolarizing Reference Devices in Generalized Probabilistic Theories. arXiv preprint arXiv:2312.12790 (2023).
- Piera, Rodrigo S., John B. DeBrota, Matthew B. Weiss, Gabriela B. Lemos, Jailson Sales Araújo, Gabriel H. Aguilar, and Jacques L. Pienaar. Synthesizing the Born rule with reinforcement learning. arXiv preprint arXiv:2404.19011 (2024).
- Charlotte Kyeremah, Matthew Weiss, Dila Kandel, Daniel Haehn, Chandra Yelleswarapu, Single-beam digital holographic reconstruction: a phase-support enhanced complex wavefront on phase-only function for twin-image elimination, J. Biomed. Opt. 29(7), 076502 (2024), doi: 10.1117/1.JBO.29.7.076502.
- Matthew B. Weiss. Characterizing quantum state-space with a single quantum measurement. arXiv preprint arXiv:2412.13505 (2024)

Conference Talks
- The Group Inverse for Quantum Information Theory. APS March Meeting 2023. Session F65: Quantum Field Theories and Foundations.
- How Quantum is QBism? The Quantum Reconstruction Program and Beyond. 8/3/23. University of Graz.
- QBism for the human sciences: elegant tools for post-classical modeling. Quantum Information and Probability: from Foundations to Engineering (QIP24). 6/12/24. Linnaeus University.
- Characterizing quantum state-space with a single quantum measurement. 6th Workshop On Algebraic Structures in Quantum Computation. 2/19/25. Leibniz University. Hannover, Germany.
- A 3-design is all you need. APS March Meeting 2025. Session MAR-G35: Applied Quantum Foundations.

The Brooklyn Quantum
