Quantum computing with NMR

NMR Quantum Computing

The goal of this project is to do ‘proof of concept’ quantum information processing. The basic elements needed for this are a quantum system and a way to control and measure its state. Our quantum system is a solution of C-13 Chloroform, and we interacted with system’s state using Cornell College’s Nuclear Magnetic Resonance (NMR) spectrometer. By mapping certain aspects of the quantum state to...

NMR Quantum Computing

Quantum computing is at the forefront of the scientific and technological research and development of the 21 century. NMR quantum computing is one the most mature technologies for implementing quantum computation. It utilizes the motion of spins of nuclei in custom-designed molecules manipulated by RF pulses. The motion is on a nanoor microscopic scale governed by the Schrödinger equation in qu...

Liquid State NMR Quantum Computing

Quantum Computing with NMR: Deutsch-Josza and Grover Algorithms

A Bruker Avance 200 NMR Spectrometer was used to perform simple quantum computations on a two quantum-bit (qubit) bulk system of CHCl4. Base states |00〉 were created through the process of temporal averaging. The logic of the controlled-NOT (CNOT) gate was observed and used in the application of the Deutsch-Josza and Grover algorithms. The Deutsch-Josza algorithm was successfully used to determ...

Ensemble quantum computing by NMR spectroscopy.

A quantum computer (QC) can operate in parallel on all its possible inputs at once, but the amount of information that can be extracted from the result is limited by the phenomenon of wave function collapse. We present a new computational model, which differs from a QC only in that the result of a measurement is the expectation value of the observable, rather than a random eigenvalue thereof. S...