Coupled integrated photonic quantum memristors using a single photon source made of a colour center
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2026
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866908836645830656 |
|---|---|
| author | Baldazzi, Alessio Ancel, Roy Philip George Konnoth Guaraldo, Sebastiano Chen, Xuan Akar, Ziad Abi Deturche, Regis Azzini, Stefano Couteau, Christophe Pavesi, Lorenzo |
| author_facet | Baldazzi, Alessio Ancel, Roy Philip George Konnoth Guaraldo, Sebastiano Chen, Xuan Akar, Ziad Abi Deturche, Regis Azzini, Stefano Couteau, Christophe Pavesi, Lorenzo |
| contents | Photonic quantum memristors provide a measurement-induced route to nonlinear and history-dependent quantum dynamics. Experimental demonstrations have so far focused on isolated devices or simple cascaded devices configurations. Here, we experimentally realize and characterize a network of two coupled photonic quantum memristors with crossed feedback, implemented on a silicon nitride photonic integrated circuit and fed by a room-temperature single-photon source based on a silicon-vacancy color center SiV$^-$ in a nanodiamond. Each memristor consists of an integrated Mach-Zehnder interferometer whose transfer function is adaptively updated by photon detection events on another memristor, thus generating novel non-Markovian input-output dynamics with an enhanced memristive behaviour compared to single devices. In particular, we report inter-memristor input-output hysteresis curves exhibiting larger form factors and displaying self-intersecting loops, respectively revealing marked bistability and topologically non-trivial memory dynamics. Furthermore, numerical simulations show how these features emerge from the interplay between memory depth and relative input phase, for both intra- and inter-memristor input-output relations. Our results establish coupled integrated photonic quantum memristors as scalable nonlinear building blocks and highlight their potential for implementing compact quantum neuromorphic and reservoir computing architectures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_14736 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Coupled integrated photonic quantum memristors using a single photon source made of a colour center Baldazzi, Alessio Ancel, Roy Philip George Konnoth Guaraldo, Sebastiano Chen, Xuan Akar, Ziad Abi Deturche, Regis Azzini, Stefano Couteau, Christophe Pavesi, Lorenzo Quantum Physics Photonic quantum memristors provide a measurement-induced route to nonlinear and history-dependent quantum dynamics. Experimental demonstrations have so far focused on isolated devices or simple cascaded devices configurations. Here, we experimentally realize and characterize a network of two coupled photonic quantum memristors with crossed feedback, implemented on a silicon nitride photonic integrated circuit and fed by a room-temperature single-photon source based on a silicon-vacancy color center SiV$^-$ in a nanodiamond. Each memristor consists of an integrated Mach-Zehnder interferometer whose transfer function is adaptively updated by photon detection events on another memristor, thus generating novel non-Markovian input-output dynamics with an enhanced memristive behaviour compared to single devices. In particular, we report inter-memristor input-output hysteresis curves exhibiting larger form factors and displaying self-intersecting loops, respectively revealing marked bistability and topologically non-trivial memory dynamics. Furthermore, numerical simulations show how these features emerge from the interplay between memory depth and relative input phase, for both intra- and inter-memristor input-output relations. Our results establish coupled integrated photonic quantum memristors as scalable nonlinear building blocks and highlight their potential for implementing compact quantum neuromorphic and reservoir computing architectures. |
| title | Coupled integrated photonic quantum memristors using a single photon source made of a colour center |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2602.14736 |