A Universal Quantum Computing Virtual Machine

TL;DR

This paper introduces a 34-qubit quantum virtual machine (QtVM) capable of universal quantum computation, supporting complex programming constructs, large gate counts, and demonstrating key quantum algorithms and phenomena.

Contribution

The paper presents a medium-scale, fully functional quantum virtual machine with advanced programming features and large-scale simulation capabilities, which was not previously available.

Findings

Simulated quantum phase transition with 34 qubits and one million gates

Implemented programmable Shor algorithm for factoring 15 and 35

Demonstrated complex quantum algorithms and control structures

Abstract

A medium-scale quantum computer with full universal quantum computing capability is necessary for various practical aims and testing applications. Here we report a 34-qubit quantum virtual machine (QtVM) based on a medium server. Our QtVM can run quantum assembly language with graphic interfaces. The QtVM is implemented with single qubit rotation gate, single to multiple controlled NOT gates to realize the universal quantum computation. Remarkably, it can realize a series of basic functions, such as, the "if" conditional programming language based on single-shot projective measurement results, "for" iteration programming language, build in arithmetic calculation. The measurement can be single-shot and arbitrary number of multi-shot types. In addition, there is in principle no limitation on number of logic gates implemented for quantum computation. By using QtVM, we demonstrate the simulation of dynamical quantum phase transition of transverse field Ising model by quantum circuits, where 34 qubits with one million gates are realized. We also show the realization of programmable Shor algorithm for factoring 15 and 35.