The mathematical perspective offered by theory plays a fundamental role in connecting computer science with the other pure sciences. Since the founding of UChicago CS in 1983, theory has been a core strength of the department, in alignment with the scientific vision and strengths of the broader university. CS theory faculty specialize in complexity, logic, uncertainty, combinatorics, randomness and other areas that bridge CS with physics, statistics, and other mathematical sciences.

At UChicago CS, researchers develop theory to understand more abstract, fundamental questions, such as teasing out the inherent limits of computation and their connection with the physical nature of our universe. They also develop theory and build algorithms for applications such as quantum computing, machine learning, and cryptography, working in tandem with other research areas in charting the pathway for tomorrow’s technologies. A robust relationship with the Toyota Technological Institute at Chicago (TTIC), a privately-endowed academic institute located on the UChicago campus, expands and enriches the theory community.

Labs & Groups

EPiQC (Enabling Practical-Scale Quantum Computing)

Fred Chong
A multi-disciplinary, multi-institutional NSF Expedition in Computing, led by UChicago, that spans quantum algorithms, software, and physical machines.

Theoretical Computer Science Group

The Theory group plays a fundamental role in connecting CS with physics, statistics, and other mathematical sciences.

Orecchia Group

Lorenzo Orecchia
Designing simple, efficient algorithms for foundational computational challenges arising in a variety of applications.

Related Faculty

Laslo Babai

László Babai

Bruce V. and Diana M. Rauner Distinguished Service Professor of Computer Science, Mathematics
David Cash

David Cash

Professor of Computer Science

Julia Chuzhoy

Professor, Toyota Technological Institute
Aloni Cohen

Aloni Cohen

Assistant Professor of Computer Science, Data Science
Todd Dupont

Todd Dupont

Professor Emeritus of Computer Science, Mathematics, and the James Franck Institute
William Fefferman

William Fefferman

Assistant Professor of Computer Science
Risi Kondor

Risi Kondor

Associate Professor of Computer Science, Statistics
Stuart Kurtz

Stuart Kurtz

George and Elizabeth Yovovich Professor of Computer Science and the College

Yury Makarychev

Associate Professor, Toyota Technological Institute
Ketan Mulmuley

Ketan Mulmuley

Professor of Computer Science
Lorenzo Orecchia

Lorenzo Orecchia

Assistant Professor of Computer Science
Aaron Potechin

Aaron Potechin

Assistant Professor of Computer Science

Robert Rand

Assistant Professor of Computer Science

Alexander A. Razborov

Andrew MacLeish Distinguished Service Professor of Computer Science, Mathematics
Janos Simon

Janos Simon

Professor of Computer Science

Madhur Tulsiani

Assistant Professor, Director of Graduate Studies, Toyota Technological Institute
Haifeng Xu

Haifeng Xu

Assistant Professor of Computer Science, Data Science

News & Events

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UChicago CS News

Faculty Spotlight: Get to Know Kexin Pei

Jun 03, 2025
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David Cash Receives 2025 Quantrell Award for Undergraduate Teaching

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UChicago Students Received ACM EuroSys Best Paper for CacheBlend, a Game-Changer in AI Speed and Precision

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More Control, Less Connection: How User Control Affects Robot Social Agency

May 16, 2025
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Video

AI and the Future of Work Panel: Featuring Nick Feamster

May 06, 2025
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UChicago CS News

Innovation at the Forefront: UChicago CS Researchers Make Significant Contributions to CHI 2025

Apr 23, 2025
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UChicago CS News

The University of Chicago Hosts the First Great Lakes Graphics Workshop

Apr 23, 2025
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In the News

Quantum Materials, Built By AI Robot

Apr 22, 2025
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