Quantum Interference between Fundamentally Different Processes Is Enabled by Shaped Input Wavefunctions
Abstract 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 be...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-04-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202205750 |
| _version_ | 1827972770729820160 |
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| author | Jeremy Lim Suraj Kumar Yee Sin Ang Lay Kee Ang Liang Jie Wong |
| author_facet | Jeremy Lim Suraj Kumar Yee Sin Ang Lay Kee Ang Liang Jie Wong |
| author_sort | Jeremy Lim |
| collection | DOAJ |
| description | Abstract 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 | 2024-04-09T19:26:38Z |
| format | Article |
| id | doaj.art-6610f56f16c5483b8fedecdc4018d37b |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-09T19:26:38Z |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-6610f56f16c5483b8fedecdc4018d37b2023-04-05T08:09:48ZengWileyAdvanced Science2198-38442023-04-011010n/an/a10.1002/advs.202205750Quantum Interference between Fundamentally Different Processes Is Enabled by Shaped Input WavefunctionsJeremy Lim0Suraj Kumar1Yee Sin Ang2Lay Kee Ang3Liang Jie Wong4Science, Mathematics and Technology Singapore University of Technology and Design 8 Somapah Road Singapore 487372 SingaporeSchool of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 SingaporeScience, Mathematics and Technology Singapore University of Technology and Design 8 Somapah Road Singapore 487372 SingaporeScience, Mathematics and Technology Singapore University of Technology and Design 8 Somapah Road Singapore 487372 SingaporeSchool of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 SingaporeAbstract 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.https://doi.org/10.1002/advs.202205750light–matter interactionsnanophotonicsquantum interferenceultrafast opticswaveshaping |
| spellingShingle | Jeremy Lim Suraj Kumar Yee Sin Ang Lay Kee Ang Liang Jie Wong Quantum Interference between Fundamentally Different Processes Is Enabled by Shaped Input Wavefunctions Advanced Science light–matter interactions nanophotonics quantum interference ultrafast optics waveshaping |
| 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 | light–matter interactions nanophotonics quantum interference ultrafast optics waveshaping |
| url | https://doi.org/10.1002/advs.202205750 |
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