Rescaling interactions for quantum control
A powerful control method in experimental quantum computing is the use of spin echoes, employed to select a desired term in the system’s internal Hamiltonian, while refocusing others. Here, we address a more general problem, describing a method to not only turn on and off particular interactions but...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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American Physical Society
2020
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| _version_ | 1797104484228268032 |
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| author | Bhole, G Tsunoda, T Leek, PJ Jones, JA |
| author_facet | Bhole, G Tsunoda, T Leek, PJ Jones, JA |
| author_sort | Bhole, G |
| collection | OXFORD |
| description | A powerful control method in experimental quantum computing is the use of spin echoes, employed to select a desired term in the system’s internal Hamiltonian, while refocusing others. Here, we address a more general problem, describing a method to not only turn on and off particular interactions but also to rescale their strengths so that we can generate any desired effective internal Hamiltonian. We propose an algorithm based on linear programming for achieving time-optimal rescaling solutions in fully coupled systems of tens of qubits, which can be modified to obtain near-time-optimal solutions for rescaling systems with hundreds of qubits. |
| first_indexed | 2024-03-07T06:34:28Z |
| format | Journal article |
| id | oxford-uuid:f71ffa4b-2c98-4686-a19c-a01f5328b7c2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:34:28Z |
| publishDate | 2020 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:f71ffa4b-2c98-4686-a19c-a01f5328b7c22022-03-27T12:40:26ZRescaling interactions for quantum controlJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f71ffa4b-2c98-4686-a19c-a01f5328b7c2EnglishSymplectic ElementsAmerican Physical Society2020Bhole, GTsunoda, TLeek, PJJones, JAA powerful control method in experimental quantum computing is the use of spin echoes, employed to select a desired term in the system’s internal Hamiltonian, while refocusing others. Here, we address a more general problem, describing a method to not only turn on and off particular interactions but also to rescale their strengths so that we can generate any desired effective internal Hamiltonian. We propose an algorithm based on linear programming for achieving time-optimal rescaling solutions in fully coupled systems of tens of qubits, which can be modified to obtain near-time-optimal solutions for rescaling systems with hundreds of qubits. |
| spellingShingle | Bhole, G Tsunoda, T Leek, PJ Jones, JA Rescaling interactions for quantum control |
| title | Rescaling interactions for quantum control |
| title_full | Rescaling interactions for quantum control |
| title_fullStr | Rescaling interactions for quantum control |
| title_full_unstemmed | Rescaling interactions for quantum control |
| title_short | Rescaling interactions for quantum control |
| title_sort | rescaling interactions for quantum control |
| work_keys_str_mv | AT bholeg rescalinginteractionsforquantumcontrol AT tsunodat rescalinginteractionsforquantumcontrol AT leekpj rescalinginteractionsforquantumcontrol AT jonesja rescalinginteractionsforquantumcontrol |