Structural constraint on delayed-choice quantum eraser architectures
Fuente:
arXiv
Saved in:
| Main Author: | |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913159955087360 |
|---|---|
| author | Fikri, Chakir |
| author_facet | Fikri, Chakir |
| contents | Delayed-choice quantum eraser (DCQE) experiments are often presented as challenging classical causal intuitions by correlating detection events with choices implemented at later times. While it is well understood that post-selection plays a crucial role in producing the observed interference patterns, the structural features underlying such correlations are rarely analyzed within a unified framework. In this work, we introduce a simple probabilistic constraint applicable to idealized DCQE architectures. We show that four intuitive properties -- statistical independence of the choice, absence of losses, deterministic routing conditioned on the choice, and distinct conditional detection distributions -- cannot be simultaneously satisfied. This incompatibility provides a transparent classification of DCQE schemes and clarifies how conditional interference patterns arise without invoking exotic mechanisms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_24994 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Structural constraint on delayed-choice quantum eraser architectures Fikri, Chakir Quantum Physics Delayed-choice quantum eraser (DCQE) experiments are often presented as challenging classical causal intuitions by correlating detection events with choices implemented at later times. While it is well understood that post-selection plays a crucial role in producing the observed interference patterns, the structural features underlying such correlations are rarely analyzed within a unified framework. In this work, we introduce a simple probabilistic constraint applicable to idealized DCQE architectures. We show that four intuitive properties -- statistical independence of the choice, absence of losses, deterministic routing conditioned on the choice, and distinct conditional detection distributions -- cannot be simultaneously satisfied. This incompatibility provides a transparent classification of DCQE schemes and clarifies how conditional interference patterns arise without invoking exotic mechanisms. |
| title | Structural constraint on delayed-choice quantum eraser architectures |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2605.24994 |