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Journal article

Rescaling interactions for quantum control

Abstract:
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.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevApplied.13.034002

Authors


More by this author
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
ORCID:
0000-0003-1862-587X


Publisher:
American Physical Society
Journal:
Physical Review Applied More from this journal
Volume:
13
Issue:
3
Article number:
034002
Publication date:
2020-03-02
Acceptance date:
2020-02-03
DOI:
EISSN:
2331-7019


Language:
English
Pubs id:
1087098
Local pid:
pubs:1087098
Deposit date:
2020-02-12

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