Quick Navigation

Overview Topics Abstract Importance Paper Tools References Reactions Discussion Publication Related

Topics

Superconducting Qubits

Topological quantum state control through exceptional-point proximity

arXiv
Authors: Maryam Abbasi, Weijian Chen, Mahdi Naghiloo, Yogesh N. Joglekar, Kater W. Murch

Year

2021

Paper ID

62442

Status

Preprint

Abstract Read

~2 min

Abstract Words

96

Citations

N/A

Abstract

We study the quantum evolution of a non-Hermitian qubit realized as a submanifold of a dissipative superconducting transmon circuit. Real-time tuning of the system parameters to encircle an exceptional point results in non-reciprocal quantum state transfer. We further observe chiral geometric phases accumulated under state transport, verifying the quantum coherent nature of the evolution in the complex energy landscape and distinguishing between coherent and incoherent effects associated with exceptional point encircling. Our work demonstrates an entirely new method for control over quantum state vectors, highlighting new facets of quantum bath engineering enabled through dynamical non-Hermitian control.

Why This Paper Matters

  • This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
  • It adds a 2021 reference point for readers tracking recent quantum research.
  • We study the quantum evolution of a non-Hermitian qubit realized as a submanifold of a dissipative superconducting transmon circuit.

Paper Tools

Become a member to use research tools

Sign in to open papers, visit source links, share, cite, compare, copy DOI links, request category corrections, and build your reading list.

Become a member Sign in
Show Paper arXiv Publisher Share Cite This Paper Copy URL Compare Copy DOI Add to Reading List Category Correction Request

References & Citation Signals

[1] DOI https://doi.org/arXiv:2108.05365 [2] arXiv https://arxiv.org/abs/2108.05365 [3] Publisher https://arxiv.org/abs/2108.05365

Local Citation Graph (Related-Paper Links)

Current Paper #62442 #68470 A fluxonium qubit-based hybrid ... #68454 Magnon-mediated microwave to op... #68449 Scale-Invariant Open Quantum Sy... #68437 Transition-state lattice modes ...

External citation index: OpenAlex citation signal

Community Reactions

Quick sentiment from readers on this paper.

Score: 0
Likes: 0 Dislikes: 0

Sign in to react to this paper.

Discussion & Reviews (Moderated)

Average Rating: 0.0 / 5 (0 ratings)

No written reviews yet.