Schrödinger's Cat: Where Does The Entanglement Come From?

Schrödinger's cat is one of the most striking paradoxes of quantum mechanics that reveals the counterintuitive aspects of the microscopic world. Here, I discuss the paradox in the framework of quantum information. Using a quantum networks formalism, I analyse the information flow between the a...

Full description

Saved in:
Bibliographic Details
Main Author: Radu Ionicioiu
Format: Article
Language:English
Published: Quanta 2017-10-01
Series:Quanta
Online Access:https://dankogeorgiev.com/ojs/index.php/quanta/article/view/33
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1850211177199566848
author Radu Ionicioiu
author_facet Radu Ionicioiu
author_sort Radu Ionicioiu
collection DOAJ
description Schrödinger's cat is one of the most striking paradoxes of quantum mechanics that reveals the counterintuitive aspects of the microscopic world. Here, I discuss the paradox in the framework of quantum information. Using a quantum networks formalism, I analyse the information flow between the atom and the cat. This reveals that the atom and the cat are connected only through a classical information channel: the detector clicks → the poison is released → the cat is killed. No amount of local operations and classical communication can entangle the atom and the cat, which are initially in a separable state. This casts a new light on the paradox. Quanta 2017; 6: 57–60.
format Article
id doaj-art-fa8838e216d447c1a8a6691f8f866d61
institution OA Journals
issn 1314-7374
language English
publishDate 2017-10-01
publisher Quanta
record_format Article
series Quanta
spelling doaj-art-fa8838e216d447c1a8a6691f8f866d612025-08-20T02:09:37ZengQuantaQuanta1314-73742017-10-01610.12743/quanta.v6i1.6433Schrödinger's Cat: Where Does The Entanglement Come From?Radu Ionicioiu0Horia Hulubei National Institute of Physics and Nuclear Engineering Schrödinger's cat is one of the most striking paradoxes of quantum mechanics that reveals the counterintuitive aspects of the microscopic world. Here, I discuss the paradox in the framework of quantum information. Using a quantum networks formalism, I analyse the information flow between the atom and the cat. This reveals that the atom and the cat are connected only through a classical information channel: the detector clicks → the poison is released → the cat is killed. No amount of local operations and classical communication can entangle the atom and the cat, which are initially in a separable state. This casts a new light on the paradox. Quanta 2017; 6: 57–60. https://dankogeorgiev.com/ojs/index.php/quanta/article/view/33
spellingShingle Radu Ionicioiu
Schrödinger's Cat: Where Does The Entanglement Come From?
Quanta
title Schrödinger's Cat: Where Does The Entanglement Come From?
title_full Schrödinger's Cat: Where Does The Entanglement Come From?
title_fullStr Schrödinger's Cat: Where Does The Entanglement Come From?
title_full_unstemmed Schrödinger's Cat: Where Does The Entanglement Come From?
title_short Schrödinger's Cat: Where Does The Entanglement Come From?
title_sort schrodinger s cat where does the entanglement come from
url https://dankogeorgiev.com/ojs/index.php/quanta/article/view/33
work_keys_str_mv AT raduionicioiu schrodingerscatwheredoestheentanglementcomefrom