Are you one of the authors of this paper? Email us from your institutional or work email address mentioning this article's arXiv ID and we'll verify you and give you edit access to this page.
Are you an author who sees something we missed or got wrong? Write to us — the subject line already carries the paper id. We read every note and correct the write-up.
Are you an author of this paper and would prefer our analysis not to be published? Email us from your institutional address; once confirmed, we will take the page down.
Physicists squeezed the quantum jitter of an atom, restoring sharpness to interference fringes.
📄 Showing the "Simple" version — "Advanced" is not ready yet. Add it to favorites to help prioritize it.
Even at absolute rest, atoms emit a faint noise — unavoidable quantum jitter. In the debates between Einstein and Bohr, this noise, like an unceasing whisper, blurs the interference fringes from an atomic slit. Overcoming this limit was considered impossible.
Squeezing quantum noise resembles muting interference in a radio: turning down the volume of one frequency inevitably boosts another. Here, they "turned down the volume" of the component that gave away the particle's path.
First, the atom was deliberately excited with optical tweezers, then a special protocol squeezed its vibrations. Information about the trajectory was erased, and the fringes achieved a contrast of 0.938 — 10 standard deviations above the previous limit (0.819). The whisper nearly vanished, and sharpness soared. This is how ultra-precise quantum sensors are born.