Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions
This work presents a general framework for quantum interference between processes that can involve different fundamental particles or quasi-particles. This framework shows that shaping input wavefunctions is a versatile and powerful tool for producing and controlling quantum interference between dis...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
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2023
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| Online Access: | https://hdl.handle.net/10356/166412 |
| _version_ | 1826111555743252480 |
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| author | Lim, Jeremy Kumar, Suraj Ang, Yee Sin Ang, Lay Kee Wong, Liang Jie |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Lim, Jeremy Kumar, Suraj Ang, Yee Sin Ang, Lay Kee Wong, Liang Jie |
| author_sort | Lim, Jeremy |
| collection | NTU |
| description | This work presents a general framework for quantum interference between processes that can involve different fundamental particles or quasi-particles. This framework shows that shaping input wavefunctions is a versatile and powerful tool for producing and controlling quantum interference between distinguishable pathways, beyond previously explored quantum interference between indistinguishable pathways. Two examples of quantum interference enabled by shaping in interactions between free electrons, bound electrons, and photons are presented: i) the vanishing of the zero-loss peak by destructive quantum interference when a shaped electron wavepacket couples to light, under conditions where the electron's zero-loss peak otherwise dominates; ii) quantum interference between free electron and atomic (bound electron) spontaneous emission processes, which can be significant even when the free electron and atom are far apart, breaking the common notion that a free electron and an atom must be close by to significantly affect each other's processes. Conclusions show that emerging quantum wave-shaping techniques unlock the door to greater versatility in light-matter interactions and other quantum processes in general. |
| first_indexed | 2024-10-01T02:52:40Z |
| format | Journal Article |
| id | ntu-10356/166412 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:52:40Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1664122023-04-28T15:45:37Z Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions Lim, Jeremy Kumar, Suraj Ang, Yee Sin Ang, Lay Kee Wong, Liang Jie School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Light–Matter Interactions Nanophotonics This work presents a general framework for quantum interference between processes that can involve different fundamental particles or quasi-particles. This framework shows that shaping input wavefunctions is a versatile and powerful tool for producing and controlling quantum interference between distinguishable pathways, beyond previously explored quantum interference between indistinguishable pathways. Two examples of quantum interference enabled by shaping in interactions between free electrons, bound electrons, and photons are presented: i) the vanishing of the zero-loss peak by destructive quantum interference when a shaped electron wavepacket couples to light, under conditions where the electron's zero-loss peak otherwise dominates; ii) quantum interference between free electron and atomic (bound electron) spontaneous emission processes, which can be significant even when the free electron and atom are far apart, breaking the common notion that a free electron and an atom must be close by to significantly affect each other's processes. Conclusions show that emerging quantum wave-shaping techniques unlock the door to greater versatility in light-matter interactions and other quantum processes in general. Agency for Science, Technology and Research (A*STAR) Nanyang Technological University National Research Foundation (NRF) Published version This project was supported by the National Research Foundation (ProjectID NRF2020-NRF-ISF004-3525). L.J.W. acknowledges the Nanyang Assis-tant Professorship Start-up Grant. J.L. and L.K.A. acknowledge fundingfrom A*STAR AME IRG (Project ID A2083c0057), MOE Ph.D. ResearchScholarship, and USA Office of Naval Research (Global) grant (Project IDN62909-19-1-2047). Y.S.A. acknowledges funding from SUTD Startup Re-search Grant (Project ID SRT3CI21163). 2023-04-24T08:57:33Z 2023-04-24T08:57:33Z 2023 Journal Article Lim, J., Kumar, S., Ang, Y. S., Ang, L. K. & Wong, L. J. (2023). Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions. Advanced Science, 10(10), 2205750-. https://dx.doi.org/10.1002/advs.202205750 2198-3844 https://hdl.handle.net/10356/166412 10.1002/advs.202205750 36737853 2-s2.0-85147532251 10 10 2205750 en NRF2020-NRF-ISF004-3525 NTU-SUG A2083c0057 N62909-19-1-2047 SRT3CI21163 Advanced Science © 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.This is an open access article under the terms of the Creative CommonsAttribution License, which permits use, distribution and reproduction inany medium, provided the original work is properly cited. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Light–Matter Interactions Nanophotonics Lim, Jeremy Kumar, Suraj Ang, Yee Sin Ang, Lay Kee Wong, Liang Jie Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions |
| title | Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions |
| title_full | Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions |
| title_fullStr | Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions |
| title_full_unstemmed | Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions |
| title_short | Quantum interference between fundamentally different processes is enabled by shaped input wavefunctions |
| title_sort | quantum interference between fundamentally different processes is enabled by shaped input wavefunctions |
| topic | Engineering::Electrical and electronic engineering Light–Matter Interactions Nanophotonics |
| url | https://hdl.handle.net/10356/166412 |
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