English

A note on superposition of two unknown states using Deutsch CTC model

Quantum Physics 2016-09-06 v3 General Relativity and Quantum Cosmology

Abstract

In a recent work, authors prove a yet another no-go theorem that forbids the existence of a universal probabilistic quantum protocol producing a superposition of two unknown quantum states. In this short note, we show that in the presence of closed time like curves, one can indeed create superposition of unknown quantum states and evade the no-go result.

Keywords

Cite

@article{arxiv.1605.06005,
  title  = {A note on superposition of two unknown states using Deutsch CTC model},
  author = {Sasha Sami and Indranil Chakrabarty},
  journal= {arXiv preprint arXiv:1605.06005},
  year   = {2016}
}

Comments

4 pages, no figure,published version

R2 v1 2026-06-22T14:04:46.107Z