Counterfactual quantum erasure: spooky action without entanglement

Royal Society Open Science

关键词: quantum interference;    entanglement;    quantum erasure;    interaction-free measurement;    zeno effect;    counterfactual communication;   

DOI  :  10.1098/rsos.171250

来源: DOAJ

【 摘 要 】

We combine the eyebrow-raising quantum phenomena of erasure and counterfactuality for the first time, proposing a simple yet unusual quantum eraser: A distant Bob can decide to erase which-path information from Alice’s photon, dramatically restoring interference—without previously shared entanglement, and without Alice’s photon ever leaving her laboratory.

【 授权许可】

Unknown