The readout of the fullerene-based quantum computing by a scanning tunneling microscope
arXiv:quant-ph/0610083 · doi:10.1088/1367-2630/8/10/252
Abstract
We consider to detect the electron spin of a doped atom, i.e., a nitrogen or a phosphorus, caged in a fullerene by currently available technique of the scanning tunneling microscope (STM), which actually corresponds to the readout of a qubit in the fullerene-based quantum computing. Under the conditions of polarized STM current and Coulomb blockade, we investigate the tunneling matrix elements involving the exchange coupling between the tunneling polarized electrons and the encapsulated polarized electron, and calculate the variation of the tunneling current with respect to different orientations of the encapsulated electron spin. The experimental feasibility of our scheme is discussed under the consideration of some imperfect factors.
RevTex file, 3 figures. To appear in New Journal of Physics
References in corpus (13)
- Quantum Dot as Spin Filter and Spin Memory
- Detection of Single Spin Decoherence in a Quantum Dot via Charge Currents
- Quantum cellular automata quantum computing with endohedral fullerenes
- Single Spin Measurement using Single Electron Transistors to Probe Two Electron Systems
- Theory for transport through a single magnetic molecule: Endohedral N@C60
- Quantum computing and single-qubit measurements using the spin filter effect
- Electron Spins in Artificial Atoms and Molecules for Quantum Computing
- Noise spectroscopy of a single spin with spin polarized STM
- Spin-detection in a quantum electromechanical shuttle system
- Exchange Based Noise Spectroscopy of a Single Precessing Spin with STM
- Selective pulse implementation of two-qubit gates for spin-3/2 based fullerene quantum information processing
- Readout scheme of the fullerene-based quantum computer by a single electron transistor
- Single spin detection by qubit SWAP to a molecular nanomagnet