Hong-Ou-Mandel interference of more than 10 indistinguishable atoms
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917975810899968 |
|---|---|
| author | Quensen, Martin Hetzel, Mareike Santos, Luis Smerzi, Augusto Tóth, Géza Pezzè, Luca Klempt, Carsten |
| author_facet | Quensen, Martin Hetzel, Mareike Santos, Luis Smerzi, Augusto Tóth, Géza Pezzè, Luca Klempt, Carsten |
| contents | When two indistinguishable bosons interfere at a beam splitter, they both exit through the same output port. This foundational quantum-mechanical phenomenon, known as the Hong-Ou-Mandel (HOM) effect, has become a cornerstone in the field of quantum information. It also extends to many indistinguishable particles, resulting in complex interference patterns. However, despite of its fundamental and applied interest, the many-particle effect has only been observed in notoriously lossy photonic systems, but a realization with atomic systems has remained elusive until now. Here, we demonstrate HOM interference with up to 12 indistinguishable neutral atoms in a system with negligible loss. Our single-particle counting clearly reveals parity oscillations, a bunching envelope and genuine multi-partite entanglement, defining features of the multi-particle HOM effect. Our technique offers the potential for scaling to much larger numbers, presenting promising applications in quantum information with indistinguishable particles and Heisenberg-limited atom interferometry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_02691 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hong-Ou-Mandel interference of more than 10 indistinguishable atoms Quensen, Martin Hetzel, Mareike Santos, Luis Smerzi, Augusto Tóth, Géza Pezzè, Luca Klempt, Carsten Quantum Physics When two indistinguishable bosons interfere at a beam splitter, they both exit through the same output port. This foundational quantum-mechanical phenomenon, known as the Hong-Ou-Mandel (HOM) effect, has become a cornerstone in the field of quantum information. It also extends to many indistinguishable particles, resulting in complex interference patterns. However, despite of its fundamental and applied interest, the many-particle effect has only been observed in notoriously lossy photonic systems, but a realization with atomic systems has remained elusive until now. Here, we demonstrate HOM interference with up to 12 indistinguishable neutral atoms in a system with negligible loss. Our single-particle counting clearly reveals parity oscillations, a bunching envelope and genuine multi-partite entanglement, defining features of the multi-particle HOM effect. Our technique offers the potential for scaling to much larger numbers, presenting promising applications in quantum information with indistinguishable particles and Heisenberg-limited atom interferometry. |
| title | Hong-Ou-Mandel interference of more than 10 indistinguishable atoms |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.02691 |