Integrated programmable controlled phase gate design for quantum information processing


Başay Y., KOCAMAN S.

Physica Scripta, vol.98, no.10, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 98 Issue: 10
  • Publication Date: 2023
  • Doi Number: 10.1088/1402-4896/acf895
  • Journal Name: Physica Scripta
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, zbMATH
  • Keywords: CPHASE gate, integrated optics, linear optical quantum computing, polarization rotator
  • Middle East Technical University Affiliated: Yes

Abstract

An integrated programmable controlled-phase (CPHASE) gate has been proposed for quantum information processing applications. This gate can introduce arbitrary phase difference to the target qubit in the case of the control qubit being in the state of |1〉. As the desired phase difference can be utilized after fabrication, unlike the conventional controlled-phase gates that provide hard-coded phase shift, such an integrated gate is expected to pave the way for more versatile operations of current integrated optical circuits as well as possible new applications.