Quantum tunnelling without a barrier
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866916696832344064 |
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| author | Weber, Anne Khokhlova, Margarita Pisanty, Emilio |
| author_facet | Weber, Anne Khokhlova, Margarita Pisanty, Emilio |
| contents | Tunneling is an iconic concept that captures the peculiarity of quantum dynamics but, despite its ubiquity, questions remain. We focus on strong-field tunneling, which is vital to all attosecond science. We find an unexpected optical tunneling event that happens when the instantaneous electric field vanishes and there is no barrier. This event arises from a color switchover in a strongly polychromatic field. The tunneling without a barrier reveals the disconnect between the standard intuition built on the picture of a quasistatic barrier and the nonadiabatic nature of the process. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_14826 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Quantum tunnelling without a barrier Weber, Anne Khokhlova, Margarita Pisanty, Emilio Quantum Physics Atomic Physics Optics Tunneling is an iconic concept that captures the peculiarity of quantum dynamics but, despite its ubiquity, questions remain. We focus on strong-field tunneling, which is vital to all attosecond science. We find an unexpected optical tunneling event that happens when the instantaneous electric field vanishes and there is no barrier. This event arises from a color switchover in a strongly polychromatic field. The tunneling without a barrier reveals the disconnect between the standard intuition built on the picture of a quasistatic barrier and the nonadiabatic nature of the process. |
| title | Quantum tunnelling without a barrier |
| topic | Quantum Physics Atomic Physics Optics |
| url | https://arxiv.org/abs/2311.14826 |