Energetic Cost of Superadiabatic Quantum Computation

Frontiers in ICT

Hen, Itay²  Coulamy, Ivan B.²  Santos, Alan C.³  Sarandy, Marcelo S.³ 

[1] Information Sciences Institute, University of Southern California, USA;Instituto de Física, Universidade Federal Fluminense, Brazil

关键词: Quantum computing;    Quantum information;    shortcuts to adiabaticity;    Superadiabaticity;    quantum gates;    Quantum search;   

DOI  :  10.3389/fict.2016.00019

学科分类：计算机网络和通讯

来源: Frontiers

【 摘 要 】

We discuss the energetic cost of superadiabatic models of quantum computation. Specifically, we investigate the energy-time complementarity in general transitionless controlled evolutions and in shortcuts to the adiabatic quantum search over an unstructured list. We show that the additional energy resources required by superadiabaticity for arbitrary controlled evolutions can be minimized by using probabilistic dynamics, so that the optimal success probability is fixed by the choice of the evolution time. In the case of analog quantum search, we show that the superadiabatic approach induces a non-oracular counter-diabatic Hamiltonian, with the same energy-time complexity as equivalent adiabatic implementations.

【 授权许可】

CC BY