Multi-Particle Interference in an Electronic Mach–Zehnder Interferometer
The development of dynamic single-electron sources has made it possible to observe and manipulate the quantum properties of individual charge carriers in mesoscopic circuits. Here, we investigate multi-particle effects in an electronic Mach–Zehnder interferometer driven by a series of voltage pulses...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/23/6/736 |
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| author | Janne Kotilahti Pablo Burset Michael Moskalets Christian Flindt |
| author_facet | Janne Kotilahti Pablo Burset Michael Moskalets Christian Flindt |
| author_sort | Janne Kotilahti |
| collection | DOAJ |
| description | The development of dynamic single-electron sources has made it possible to observe and manipulate the quantum properties of individual charge carriers in mesoscopic circuits. Here, we investigate multi-particle effects in an electronic Mach–Zehnder interferometer driven by a series of voltage pulses. To this end, we employ a Floquet scattering formalism to evaluate the interference current and the visibility in the outputs of the interferometer. An injected multi-particle state can be described by its first-order correlation function, which we decompose into a sum of elementary correlation functions that each represent a single particle. Each particle in the pulse contributes independently to the interference current, while the visibility (given by the maximal interference current) exhibits a Fraunhofer-like diffraction pattern caused by the multi-particle interference between different particles in the pulse. For a sequence of multi-particle pulses, the visibility resembles the diffraction pattern from a grid, with the role of the grid and the spacing between the slits being played by the pulses and the time delay between them. Our findings may be observed in future experiments by injecting multi-particle pulses into a Mach–Zehnder interferometer. |
| first_indexed | 2024-03-10T10:30:35Z |
| format | Article |
| id | doaj.art-bb0d21dfd02c4fbaa5227c8f5f2fefc1 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-10T10:30:35Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-bb0d21dfd02c4fbaa5227c8f5f2fefc12023-11-21T23:39:59ZengMDPI AGEntropy1099-43002021-06-0123673610.3390/e23060736Multi-Particle Interference in an Electronic Mach–Zehnder InterferometerJanne Kotilahti0Pablo Burset1Michael Moskalets2Christian Flindt3Department of Applied Physics, Aalto University, 00076 Aalto, FinlandDepartment of Applied Physics, Aalto University, 00076 Aalto, FinlandDepartment of Metal and Semiconductor Physics, NTU “Kharkiv Polytechnic Institute”, 61002 Kharkiv, UkraineDepartment of Applied Physics, Aalto University, 00076 Aalto, FinlandThe development of dynamic single-electron sources has made it possible to observe and manipulate the quantum properties of individual charge carriers in mesoscopic circuits. Here, we investigate multi-particle effects in an electronic Mach–Zehnder interferometer driven by a series of voltage pulses. To this end, we employ a Floquet scattering formalism to evaluate the interference current and the visibility in the outputs of the interferometer. An injected multi-particle state can be described by its first-order correlation function, which we decompose into a sum of elementary correlation functions that each represent a single particle. Each particle in the pulse contributes independently to the interference current, while the visibility (given by the maximal interference current) exhibits a Fraunhofer-like diffraction pattern caused by the multi-particle interference between different particles in the pulse. For a sequence of multi-particle pulses, the visibility resembles the diffraction pattern from a grid, with the role of the grid and the spacing between the slits being played by the pulses and the time delay between them. Our findings may be observed in future experiments by injecting multi-particle pulses into a Mach–Zehnder interferometer.https://www.mdpi.com/1099-4300/23/6/736time-dependent currentsFloquet scattering theorylevitonselectron quantum opticssingle-electron sourcesMach–Zehnder interferometer |
| spellingShingle | Janne Kotilahti Pablo Burset Michael Moskalets Christian Flindt Multi-Particle Interference in an Electronic Mach–Zehnder Interferometer Entropy time-dependent currents Floquet scattering theory levitons electron quantum optics single-electron sources Mach–Zehnder interferometer |
| title | Multi-Particle Interference in an Electronic Mach–Zehnder Interferometer |
| title_full | Multi-Particle Interference in an Electronic Mach–Zehnder Interferometer |
| title_fullStr | Multi-Particle Interference in an Electronic Mach–Zehnder Interferometer |
| title_full_unstemmed | Multi-Particle Interference in an Electronic Mach–Zehnder Interferometer |
| title_short | Multi-Particle Interference in an Electronic Mach–Zehnder Interferometer |
| title_sort | multi particle interference in an electronic mach zehnder interferometer |
| topic | time-dependent currents Floquet scattering theory levitons electron quantum optics single-electron sources Mach–Zehnder interferometer |
| url | https://www.mdpi.com/1099-4300/23/6/736 |
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