Quick Navigation

Overview Topics Abstract Importance Paper Tools References Reactions Discussion Publication Related

Topics

Superconducting Qubits

Negative Full Counting Statistics Arise From Interference Effects

arXiv

Authors: Patrick P. Hofer, Aashish A. Clerk

Year

2015

Paper ID

26810

Status

Preprint

Abstract Read

~2 min

Abstract Words

Citations

N/A

Abstract

The Keldysh-ordered full counting statistics is a quasi-probability distribution describing the fluctuations of a time-integrated quantum observable. While it is well known that this distribution can fail to be positive, the interpretation and origin of this negativity has been somewhat unclear. Here, we show how the full counting statistics can be tied to trajectories through Hilbert space, and how this directly connects negative quasi-probabilities to an unusual interference effect. Our findings are illustrated with the example of energy fluctuations in a driven bosonic resonator; we discuss how negative quasi-probability here could be detected experimentally using superconducting microwave circuits.

Why This Paper Matters

This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
It adds a 2015 reference point for readers tracking recent quantum research.
The Keldysh-ordered full counting statistics is a quasi-probability distribution describing the fluctuations of a time-integrated quantum observable.

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:1510.02416 [2] arXiv https://arxiv.org/abs/1510.02416 [3] Publisher https://arxiv.org/abs/1510.02416

Local Citation Graph (Related-Paper Links)

External citation index: OpenAlex citation signal

Community Reactions

Quick sentiment from readers on this paper.

Score: 0

Likes: 0 Dislikes: 0

Discussion & Reviews (Moderated)

Average Rating: 0.0 / 5 (0 ratings)

No written reviews yet.