Anyone can try quantum computing experiments on Bristol’s public access two-quibit chip.
Bristol University’s centre for quantum photonics has hooked up its quantum chip to the web. Anyone interested in quantum physics or computing can follow a link to Bristol’s Qcloud and try an experiment on a quantum simulator, before running it on a real quantum computer. Read the whole article at www.techweekeurope.co.uk.
The QUIE2T - sponsored international QIPC conference 2013 was successfully staged in Florence last week.
In addition to the scientific program, the 2013 QIPC conference comprised sessions that were of interest beyond the scientific community, and that continued the tradition of similar activities at earlier QIPC conferences. Adjusted to the vocation of QUIE2T, these activities included an ‚Industry Session‘, an ‚EU funding session‘ and the ceremony for the ‚QIPC Young Investigator Award‘.
Come along to the Oxford University Museum of Natural History, Parks Road, from 5:30pm on Thursday 6th June for an evening of 3 fascinating talks about quantum mechanics – the strangest theory ever to be correct!
A $15m computer that uses "quantum physics" effects to boost its speed is to be installed at a Nasa facility.
The BBC reports this story about a quantum computer to be shared by Google, Nasa, and other scientists. Read the whole article at www.bbc.co.uk.
The 2013 QUROPE - QIPC Young Investigator Award has been awarded jointly to Dr. Fernando Brandao and Dr. Patrick Joachim Windpassinger.
We are happy to announce that, by decision of the QUIE2T Advisory Board of Experts and upon approval by the QUIE2T Coordination Steering committee, the
2013 European Quantum Information Young Investigator Award
has been awarded jointly to
We have investigated the microwave frequency dynamic admittance of a quantum dot tunnel coupled to a two-dimensional electron gas. The measurements are made via a high-quality 6.75 GHz on-chip resonator capacitively coupled to the dot. The resonator frequency is found to shift both down and up close to conductance resonances of the dot corresponding to a change in the reactance of the system from capacitive to inductive (see Fig. 1). The observations are consistently explained in a scattering matrix model.
One important key characteristics of a non-classical physical system is entanglement. For a system containing three qubits two important classes of entangled states are GHZ- and W-states. The first class consists of superposition states between |000⟩ and |111⟩ and the second one arises when a single excitation is symmetrically shared between three qubits, i.e. in an equal superposition between |001⟩, |010⟩ and |100⟩.
Tomography is the main method used for measuring the fidelity of an experimentally implemented quantum process. However, it is a very inefficient method since the number of measurements as well as the time needed for the data post-processing scale exponentially with the number of qubits. With the ongoing experimental progress and growth in system size, quantum process tomography will soon become infeasible in state-of-the art experiments.
Download the March 2013 issue of Physics World, which is a special issue devoted to some of the most interesting cutting-edge work at the frontiers of quantum physics.
You can get a free copy here: http://physicsworld.com/cws/download/mar2013
The New York Times writes about quantum computers.