Work

Compression for Qubit Clocks

Year: 2018

Type: conference-paper

Abstract: Two-Ievel (qubit) clock systems are often used to perform precise measurement of time. In this work, we propose a compression protocol for n identically prepared states of qubit clocks. The protocol faithfully encodes the states into (1/2) logn qubits and (1/2) logn classical bits and works even in the presence of noise. If the purity of the clock states is fixed, (1/2) logn qubits are sufficient. We also prove that this protocol requires the minimum amount of total memory among all protocols with vanishing error in the large n limit.

Source: IEEE International Symposium on Information Theory (ISIT)

DOI: 10.1109/isit.2018.8437783

Authors: Yuxiang Yang, Giulio Chiribella, Masahito Hayashi

Institutions: University of Hong Kong, University of Oxford, Nagoya University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2887657152

FWCI:

Cites: 25

Cited by:

Related to: 10