Generalized Hamiltonian to describe imperfections in ion-light interaction
| Autor: | Kenneth Wright, Neal C. Pisenti, Ming Li, Jason H. V. Nguyen, Kristin M. Beck, Yunseong Nam |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Quantum Physics Atomic Physics (physics.atom-ph) FOS: Physical sciences Physics - Applied Physics Applied Physics (physics.app-ph) Quantum entanglement Laser 01 natural sciences Physics - Atomic Physics 010305 fluids & plasmas Ion law.invention symbols.namesake Quantum gate Classical mechanics law 0103 physical sciences symbols Quantum Physics (quant-ph) 010306 general physics Hamiltonian (quantum mechanics) Quantum Axial mode |
| Zdroj: | Physical Review A. 102 |
| ISSN: | 2469-9934 2469-9926 |
| Popis: | We derive a general Hamiltonian that governs the interaction between an $N$-ion chain and an externally controlled laser field, where the ion motion is quantized and the laser field is considered beyond the plane-wave approximation. This general form not only explicitly includes terms that are used to drive ion-ion entanglement, but also a series of unwanted terms that can lead to quantum gate infidelity. We demonstrate the power of our expressivity of the general Hamiltonian by singling out the effect of axial mode heating and confirm this experimentally. We discuss pathways forward in furthering the trapped-ion quantum computational quality, guiding hardware design decisions. |
| Databáze: | OpenAIRE |
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