Minimum heat dissipation in measurement-based quantum computation

TL;DR

This paper establishes a fundamental lower bound of heat dissipation in measurement-based quantum computation, linking thermodynamics and quantum physics principles.

Contribution

It proves a minimum heat dissipation limit per qubit in measurement-based quantum computation using only the no-signaling principle.

Findings

At least 2kTln2 heat dissipation per qubit is required.

The bound is derived from fundamental quantum physics principles.

The result applies universally to measurement-based quantum computation.

Abstract

We show that at least 2kTln2 of heat dissipation per qubit occurs in measurement-based quantum computation according to Landauer's principle. This result is derived by using only the fundamental fact that quantum physics respects the no-signaling principle.