# CAREER: Simulating Quantum Many-Body Phenomena with Fluxonium Qubits

> **NSF 01002526DB NSF RESEARCH & RELATED ACTIVIT** · University of Wisconsin-Madison (WI) · $798,732

## Abstract

Non-technical abstract: The collective behavior of quantum particles that compose materials presents us with numerous puzzles. This project aims to solve some of these puzzles by recreating such collective behavior within superconducting circuits. The project employs fluxonium qubits, which behave like magnetic atoms when cooled to low temperatures. Utilizing the greater freedom in design and the control that circuits provide, the research team intends to study multiple collective phenomena that appear in materials with magnetic impurities. Such phenomena include transitions between quantum phases of matter, quantum entanglement, and the process by which quantum systems reach thermal equilibrium. The research results are expected to advance our understanding of quantum states of matter. Selected ideas inspired by the research are adapted for live demonstrations presented by the principal investigator during The Wonders of Physics annual shows at the University of Wisconsin-Madison, as well as for museum exhibits, and for hands-on activities designed for teachers, thereby increasing K-12 students' engagement with quantum science and technology. The research activities provide training in state-of-the-art quantum information science and condensed matter physics to undergraduate and graduate students.

Technical abstract:
While quantum many-body phenomena play a central role in condensed matter physics, their experimental investigation is often challenging in natural setting

## Key facts

- **NSF award ID:** 2440998
- **Awardee organization:** University of Wisconsin-Madison (WI)
- **SAM.gov UEI:** LCLSJAGTNZQ7
- **PI:** Roman Kuzmin
- **Primary program:** 01002526DB NSF RESEARCH & RELATED ACTIVIT
- **All programs:** CAREER-Faculty Erly Career Dev, QUANTUM INFORMATION SCIENCE
- **Estimated total:** $798,732
- **Funds obligated:** $798,732
- **Transaction type:** Standard Grant
- **Period:** 09/01/2025 → 08/31/2030

## Primary source

NSF Award Search: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2440998

## Citation

> US National Science Foundation, Award 2440998, CAREER: Simulating Quantum Many-Body Phenomena with Fluxonium Qubits. Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/grant/nsf/2440998. Licensed CC0.

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