Quantum Computation and Simulation using Fermion Pair Registers
Quantum gas microscopes provide a powerful toolbox for probing quantum many-body physics. Recently, an exciting progress has been reported on realizing a large-scale quantum register of fermion pairs with a quantum gas microscope, in which tightly localized fermion pairs are used to encode qubits ex...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Published: |
Massachusetts Institute of Technology
2023
|
| Online Access: | https://hdl.handle.net/1721.1/151432 |
| _version_ | 1811076389872336896 |
|---|---|
| author | Sun, Xiangkai |
| author2 | Choi, Soonwon |
| author_facet | Choi, Soonwon Sun, Xiangkai |
| author_sort | Sun, Xiangkai |
| collection | MIT |
| description | Quantum gas microscopes provide a powerful toolbox for probing quantum many-body physics. Recently, an exciting progress has been reported on realizing a large-scale quantum register of fermion pairs with a quantum gas microscope, in which tightly localized fermion pairs are used to encode qubits exhibiting long coherence time and robustness against laser intensity noise. In this thesis, we propose and analyze a new approach for quantum computation and simulation, leveraging fermionic particles on optical lattices under quantum gas microscopes. We engineer the SWAP gate and high-fidelity controlled-phase gates by adjusting the fermion hopping as well as the Feshbach interaction between two fermions. These gates, together with previously demonstrated single-qubit rotations, form a universal gate set. Furthermore, by modulating the strength of the Feshbach interaction, one can realize 2D quantum Ising Hamiltonians in a programmable geometry with tunable transverse and longitudinal fields. In addition, we present a sample-efficient protocol to characterize engineered gates and Hamiltonian dynamics by improving classical shadow process tomography to require minimal experimental controls. Our work opens up new opportunities to harness existing ultracold quantum gas techniques for quantum information processing. |
| first_indexed | 2024-09-23T10:20:41Z |
| format | Thesis |
| id | mit-1721.1/151432 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T10:20:41Z |
| publishDate | 2023 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1514322023-08-01T04:04:38Z Quantum Computation and Simulation using Fermion Pair Registers Sun, Xiangkai Choi, Soonwon Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Department of Mathematics Quantum gas microscopes provide a powerful toolbox for probing quantum many-body physics. Recently, an exciting progress has been reported on realizing a large-scale quantum register of fermion pairs with a quantum gas microscope, in which tightly localized fermion pairs are used to encode qubits exhibiting long coherence time and robustness against laser intensity noise. In this thesis, we propose and analyze a new approach for quantum computation and simulation, leveraging fermionic particles on optical lattices under quantum gas microscopes. We engineer the SWAP gate and high-fidelity controlled-phase gates by adjusting the fermion hopping as well as the Feshbach interaction between two fermions. These gates, together with previously demonstrated single-qubit rotations, form a universal gate set. Furthermore, by modulating the strength of the Feshbach interaction, one can realize 2D quantum Ising Hamiltonians in a programmable geometry with tunable transverse and longitudinal fields. In addition, we present a sample-efficient protocol to characterize engineered gates and Hamiltonian dynamics by improving classical shadow process tomography to require minimal experimental controls. Our work opens up new opportunities to harness existing ultracold quantum gas techniques for quantum information processing. S.B. S.B. 2023-07-31T19:39:19Z 2023-07-31T19:39:19Z 2023-06 2023-05-18T19:59:22.871Z Thesis https://hdl.handle.net/1721.1/151432 In Copyright - Educational Use Permitted Copyright retained by author(s) https://rightsstatements.org/page/InC-EDU/1.0/ application/pdf Massachusetts Institute of Technology |
| spellingShingle | Sun, Xiangkai Quantum Computation and Simulation using Fermion Pair Registers |
| title | Quantum Computation and Simulation using Fermion Pair Registers |
| title_full | Quantum Computation and Simulation using Fermion Pair Registers |
| title_fullStr | Quantum Computation and Simulation using Fermion Pair Registers |
| title_full_unstemmed | Quantum Computation and Simulation using Fermion Pair Registers |
| title_short | Quantum Computation and Simulation using Fermion Pair Registers |
| title_sort | quantum computation and simulation using fermion pair registers |
| url | https://hdl.handle.net/1721.1/151432 |
| work_keys_str_mv | AT sunxiangkai quantumcomputationandsimulationusingfermionpairregisters |