Fast Quantum Gates with Electric Field Pulses and Optical Tweezers in Trapped Ions
We propose a two-qubit phase gate based on trapped ions that uses fast electric field pulses and spin-dependent local traps generated by optical tweezers. The phases are engineered by spin-dependent coherent evolution, interspersed with momentum kicks. We derive a set of commensurability conditions...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/27/6/595 |
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| author | Clara Robalo Pereira Liam J. Bond Matteo Mazzanti Rene Gerritsma Arghavan Safavi-Naini |
| author_facet | Clara Robalo Pereira Liam J. Bond Matteo Mazzanti Rene Gerritsma Arghavan Safavi-Naini |
| author_sort | Clara Robalo Pereira |
| collection | DOAJ |
| description | We propose a two-qubit phase gate based on trapped ions that uses fast electric field pulses and spin-dependent local traps generated by optical tweezers. The phases are engineered by spin-dependent coherent evolution, interspersed with momentum kicks. We derive a set of commensurability conditions and expressions for the spin-dependent accumulated phase that, when satisfied, realize the target two-qubit phase gate within tens of microseconds. We study the scalability of our proposal in larger-ion crystals and demonstrate the existence of solutions with up to four ions. Gates in larger crystals should also be possible but will require more commensurability conditions to be fulfilled. |
| format | Article |
| id | doaj-art-c88e9ace3c65475bb43d8fa4cab726cd |
| institution | Kabale University |
| issn | 1099-4300 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj-art-c88e9ace3c65475bb43d8fa4cab726cd2025-08-20T03:24:36ZengMDPI AGEntropy1099-43002025-05-0127659510.3390/e27060595Fast Quantum Gates with Electric Field Pulses and Optical Tweezers in Trapped IonsClara Robalo Pereira0Liam J. Bond1Matteo Mazzanti2Rene Gerritsma3Arghavan Safavi-Naini4Institute for Theoretical Physics, Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The NetherlandsInstitute for Theoretical Physics, Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The NetherlandsInstitute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, SwitzerlandVan der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, 1098 XH Amsterdam, The NetherlandsInstitute for Theoretical Physics, Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The NetherlandsWe propose a two-qubit phase gate based on trapped ions that uses fast electric field pulses and spin-dependent local traps generated by optical tweezers. The phases are engineered by spin-dependent coherent evolution, interspersed with momentum kicks. We derive a set of commensurability conditions and expressions for the spin-dependent accumulated phase that, when satisfied, realize the target two-qubit phase gate within tens of microseconds. We study the scalability of our proposal in larger-ion crystals and demonstrate the existence of solutions with up to four ions. Gates in larger crystals should also be possible but will require more commensurability conditions to be fulfilled.https://www.mdpi.com/1099-4300/27/6/595optical tweezersquantum computationtrapped ionsfast gate |
| spellingShingle | Clara Robalo Pereira Liam J. Bond Matteo Mazzanti Rene Gerritsma Arghavan Safavi-Naini Fast Quantum Gates with Electric Field Pulses and Optical Tweezers in Trapped Ions Entropy optical tweezers quantum computation trapped ions fast gate |
| title | Fast Quantum Gates with Electric Field Pulses and Optical Tweezers in Trapped Ions |
| title_full | Fast Quantum Gates with Electric Field Pulses and Optical Tweezers in Trapped Ions |
| title_fullStr | Fast Quantum Gates with Electric Field Pulses and Optical Tweezers in Trapped Ions |
| title_full_unstemmed | Fast Quantum Gates with Electric Field Pulses and Optical Tweezers in Trapped Ions |
| title_short | Fast Quantum Gates with Electric Field Pulses and Optical Tweezers in Trapped Ions |
| title_sort | fast quantum gates with electric field pulses and optical tweezers in trapped ions |
| topic | optical tweezers quantum computation trapped ions fast gate |
| url | https://www.mdpi.com/1099-4300/27/6/595 |
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