Quantum bits (qubits) emitting and absorbing photons in the telecom wavelength window (1300-1600 nm) are a key requirement for quantum communication based on fibre optics. However, the best-known, most popular solid-state qubits, such as the nitrogen-vacancy center in diamond, are active in the optical wavelength window (380-740 nm). Therefore, the recent experimental results of the BME Spin Spectroscopy research group, characterising the interaction of electrons in carbon nanotubes and telecom-wavelength photons, might be of high importance to establish novel telecom-compatible qubits. The authors believe that their findings may foster the application of carbon nanotubes in quantum technology.
Quantum bits in carbon nanotubes
One step toward telecom-compatible quantum communication: new experimental results from the BME Spin Spectroscopy research group published in ACS Nano.
J. Palotás, M. Negyedi, S. Kollarics, A. Bojtor, P. Rohringer, T. Pichler, and F. Simon
Incidence of Quantum Confinement on Dark Triplet Excitons in Carbon Nanotubes
Web page of the research group: http://dept.physics.bme.hu/SpinSpectroscopy