Light-Front Field Theory on Current Quantum Computers
We present a quantum algorithm for simulation of quantum field theory in the light-front formulation and demonstrate how existing quantum devices can be used to study the structure of bound states in relativistic nuclear physics. Specifically, we apply the Variational Quantum Eigensolver algorithm t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/23/5/597 |
| _version_ | 1827692729283379200 |
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| author | Michael Kreshchuk Shaoyang Jia William M. Kirby Gary Goldstein James P. Vary Peter J. Love |
| author_facet | Michael Kreshchuk Shaoyang Jia William M. Kirby Gary Goldstein James P. Vary Peter J. Love |
| author_sort | Michael Kreshchuk |
| collection | DOAJ |
| description | We present a quantum algorithm for simulation of quantum field theory in the light-front formulation and demonstrate how existing quantum devices can be used to study the structure of bound states in relativistic nuclear physics. Specifically, we apply the Variational Quantum Eigensolver algorithm to find the ground state of the light-front Hamiltonian obtained within the Basis Light-Front Quantization (BLFQ) framework. The BLFQ formulation of quantum field theory allows one to readily import techniques developed for digital quantum simulation of quantum chemistry. This provides a method that can be scaled up to simulation of full, relativistic quantum field theories in the quantum advantage regime. As an illustration, we calculate the mass, mass radius, decay constant, electromagnetic form factor, and charge radius of the pion on the IBM Vigo chip. This is the first time that the light-front approach to quantum field theory has been used to enable simulation of a real physical system on a quantum computer. |
| first_indexed | 2024-03-10T11:29:03Z |
| format | Article |
| id | doaj.art-b791d2cd31d245a9a55f80175a4ea9cc |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-10T11:29:03Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-b791d2cd31d245a9a55f80175a4ea9cc2023-11-21T19:27:05ZengMDPI AGEntropy1099-43002021-05-0123559710.3390/e23050597Light-Front Field Theory on Current Quantum ComputersMichael Kreshchuk0Shaoyang Jia1William M. Kirby2Gary Goldstein3James P. Vary4Peter J. Love5Department of Physics and Astronomy, Tufts University, Medford, MA 02155, USADepartment of Physics and Astronomy, Iowa State University, Ames, IA 50011, USADepartment of Physics and Astronomy, Tufts University, Medford, MA 02155, USADepartment of Physics and Astronomy, Tufts University, Medford, MA 02155, USADepartment of Physics and Astronomy, Iowa State University, Ames, IA 50011, USADepartment of Physics and Astronomy, Tufts University, Medford, MA 02155, USAWe present a quantum algorithm for simulation of quantum field theory in the light-front formulation and demonstrate how existing quantum devices can be used to study the structure of bound states in relativistic nuclear physics. Specifically, we apply the Variational Quantum Eigensolver algorithm to find the ground state of the light-front Hamiltonian obtained within the Basis Light-Front Quantization (BLFQ) framework. The BLFQ formulation of quantum field theory allows one to readily import techniques developed for digital quantum simulation of quantum chemistry. This provides a method that can be scaled up to simulation of full, relativistic quantum field theories in the quantum advantage regime. As an illustration, we calculate the mass, mass radius, decay constant, electromagnetic form factor, and charge radius of the pion on the IBM Vigo chip. This is the first time that the light-front approach to quantum field theory has been used to enable simulation of a real physical system on a quantum computer.https://www.mdpi.com/1099-4300/23/5/597quantum simulationrelativistic bound stateshadronsmesonsBLFQlight-front |
| spellingShingle | Michael Kreshchuk Shaoyang Jia William M. Kirby Gary Goldstein James P. Vary Peter J. Love Light-Front Field Theory on Current Quantum Computers Entropy quantum simulation relativistic bound states hadrons mesons BLFQ light-front |
| title | Light-Front Field Theory on Current Quantum Computers |
| title_full | Light-Front Field Theory on Current Quantum Computers |
| title_fullStr | Light-Front Field Theory on Current Quantum Computers |
| title_full_unstemmed | Light-Front Field Theory on Current Quantum Computers |
| title_short | Light-Front Field Theory on Current Quantum Computers |
| title_sort | light front field theory on current quantum computers |
| topic | quantum simulation relativistic bound states hadrons mesons BLFQ light-front |
| url | https://www.mdpi.com/1099-4300/23/5/597 |
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