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DOE OSTI · 3374151

Simulating fermions with a digital quantum computer

Chien, Riley W. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000258514245)·Chiew, Mitchell [Univ. of Cambridge (United Kingdom)]·Harrison, Brent [Dartmouth College, Hanover, NH (United States)] (ORCID:0000000340566888)·Necaise, Jason [Dartmouth College, Hanover, NH (United States)]·Wang, Weishi [Dartmouth College, Hanover, NH (United States)] (ORCID:0000000302085303)·Mudassar, Maryam [Univ. of Maryland, College Park, MD (United States)]·McLauchlan, Campbell [Univ. of Sydney, NSW (Australia)] (ORCID:000000015848291X)·Henderson, Thomas M. [Rice Univ., Houston, TX (United States)]·Scuseria, Gustavo E. [Rice Univ., Houston, TX (United States)]·Strelchuk, Sergii [Univ. of Oxford (United Kingdom)]·Whitfield, James D. [Dartmouth College, Hanover, NH (United States)] (ORCID:0000000328730622)
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Abstract

Quantum computers are expected to become a powerful tool for studying physical quantum systems. Consequently, a number of quantum algorithms to determine the physical properties of such systems have been developed. Although qubit-based quantum computers are naturally suited to the study of spin-1/2 systems, systems containing other degrees of freedom must first be encoded into qubits. Transformations to and from fermionic degrees of freedom have long been an important tool in physics and chemistry, which is now finding another application in the simulation of fermionic systems on quantum computers based on qubits. In this work, we discuss methods for encoding fermionic degrees of freedom into qubits.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

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Chien, Riley W. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000258514245), Chiew, Mitchell [Univ. of Cambridge (United Kingdom)], Harrison, Brent [Dartmouth College, Hanover, NH (United States)] (ORCID:0000000340566888), Necaise, Jason [Dartmouth College, Hanover, NH (United States)], Wang, Weishi [Dartmouth College, Hanover, NH (United States)] (ORCID:0000000302085303), Mudassar, Maryam [Univ. of Maryland, College Park, MD (United States)], McLauchlan, Campbell [Univ. of Sydney, NSW (Australia)] (ORCID:000000015848291X), Henderson, Thomas M. [Rice Univ., Houston, TX (United States)], Scuseria, Gustavo E. [Rice Univ., Houston, TX (United States)], Strelchuk, Sergii [Univ. of Oxford (United Kingdom)], Whitfield, James D. [Dartmouth College, Hanover, NH (United States)] (ORCID:0000000328730622). 2026-02-23. Simulating fermions with a digital quantum computer. https://doi.org/10.1038/s42254-025-00914-5

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