Controllable Adiabatic Manipulation of the Qubit State

TL;DR

This paper introduces a controllable adiabatic method for manipulating a qubit state using an auxiliary spin, enabling state changes while keeping both qubits in their ground states, and linking gate and adiabatic quantum computation.

Contribution

It presents a novel scheme for adiabatic control of qubit states mediated by an auxiliary spin, maintaining ground states during manipulation.

Findings

The scheme allows controlled state change without exciting the target or control qubits.

It establishes a potential connection between gate-based and adiabatic quantum computation.

The auxiliary spin facilitates transfer to its excited state for manipulation.

Abstract

We propose a scheme which implements a controllable change of the state of the target spin qubit in such a way that both the control and the target spin qubits remain in their ground states. The interaction between the two spins is mediated by an auxiliary spin, which can transfer to its excited state. Our scheme suggests a possible relationship between the gate and adiabatic quantum computation.