English

Generalized Conditional Displacement

Quantum Physics 2025-12-10 v3

Abstract

Conditional displacement with a qubit ancilla is a critical component in continuous-variable error correction protocols. We present the generalized conditional displacement operator, conditioned on a qudit ancilla, and explore potential implementations. We show how this operator can be used to enhance error correction with Gottesman-Kitaev-Preskill (GKP) codes.

Cite

@article{arxiv.2405.09977,
  title  = {Generalized Conditional Displacement},
  author = {Shiran Even-Haim and Asaf A. Diringer and Ron Ruimy and Gefen Baranes and Alexey Gorlach and Shay Hacohen-Gourgy and Ido Kaminer},
  journal= {arXiv preprint arXiv:2405.09977},
  year   = {2025}
}