Counterdiabatic control of transport in a synthetic tight-binding lattice
Quantum state transformations that are robust to experimental imperfections are important for applications in quantum information science and quantum sensing. Counterdiabatic (CD) approaches, which use knowledge of the underlying system Hamiltonian to actively correct for diabatic effects, are power...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-11-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.043201 |
| _version_ | 1827285942382100480 |
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| author | Eric J. Meier Kinfung Ngan Dries Sels Bryce Gadway |
| author_facet | Eric J. Meier Kinfung Ngan Dries Sels Bryce Gadway |
| author_sort | Eric J. Meier |
| collection | DOAJ |
| description | Quantum state transformations that are robust to experimental imperfections are important for applications in quantum information science and quantum sensing. Counterdiabatic (CD) approaches, which use knowledge of the underlying system Hamiltonian to actively correct for diabatic effects, are powerful tools for achieving simultaneously fast and stable state transformations. Protocols for CD driving have thus far been limited in their experimental implementation to discrete systems with just two or three levels, as well as bulk systems with scaling symmetries. Here, we extend the tool of CD control to a discrete synthetic lattice system composed of as many as nine sites. Although this system has a vanishing gap and thus no adiabatic support in the thermodynamic limit, we show that CD approaches can still give a substantial improvement in fidelity over naive, fast protocols. |
| first_indexed | 2024-04-24T10:23:10Z |
| format | Article |
| id | doaj.art-c2e9c789114d4009ae6d76f214e2a661 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:23:10Z |
| publishDate | 2020-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-c2e9c789114d4009ae6d76f214e2a6612024-04-12T17:03:39ZengAmerican Physical SocietyPhysical Review Research2643-15642020-11-012404320110.1103/PhysRevResearch.2.043201Counterdiabatic control of transport in a synthetic tight-binding latticeEric J. MeierKinfung NganDries SelsBryce GadwayQuantum state transformations that are robust to experimental imperfections are important for applications in quantum information science and quantum sensing. Counterdiabatic (CD) approaches, which use knowledge of the underlying system Hamiltonian to actively correct for diabatic effects, are powerful tools for achieving simultaneously fast and stable state transformations. Protocols for CD driving have thus far been limited in their experimental implementation to discrete systems with just two or three levels, as well as bulk systems with scaling symmetries. Here, we extend the tool of CD control to a discrete synthetic lattice system composed of as many as nine sites. Although this system has a vanishing gap and thus no adiabatic support in the thermodynamic limit, we show that CD approaches can still give a substantial improvement in fidelity over naive, fast protocols.http://doi.org/10.1103/PhysRevResearch.2.043201 |
| spellingShingle | Eric J. Meier Kinfung Ngan Dries Sels Bryce Gadway Counterdiabatic control of transport in a synthetic tight-binding lattice Physical Review Research |
| title | Counterdiabatic control of transport in a synthetic tight-binding lattice |
| title_full | Counterdiabatic control of transport in a synthetic tight-binding lattice |
| title_fullStr | Counterdiabatic control of transport in a synthetic tight-binding lattice |
| title_full_unstemmed | Counterdiabatic control of transport in a synthetic tight-binding lattice |
| title_short | Counterdiabatic control of transport in a synthetic tight-binding lattice |
| title_sort | counterdiabatic control of transport in a synthetic tight binding lattice |
| url | http://doi.org/10.1103/PhysRevResearch.2.043201 |
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