National Security Science and Engineering Faculty Fellowship (NSSEFF) – 2014 Fellows Towards Scalable Quantum Computation with Electrically-Gated Silicon Quantum Dot Qubits
نویسندگان
چکیده
Towards Scalable Quantum Computation with Electrically-Gated Silicon Quantum Dot Qubits Susan Coppersmith, University of Wisconsin-Madison [email protected] Dr. Coppersmith’s research currently focuses on the development of quantum information processing devices using electrically-controlled semiconducting quantum dots. This technology has emerged as an attractive candidate for large-scale quantum information processors because of the promise of scalability, manipulability, and integration with existing classical electronics technologies. Her NSSEFF project uses theory, modeling, device design, and experiment to investigate fairly radical device design changes that have the potential to greatly enhance tunability, performance, and scalability of qubits in electrically-gated quantum dots.
منابع مشابه
Single-Atom Nanoelectronics and Spin Qubits in Silicon
Electron spin qubits in silicon are excellent candidates for scalable quantum information processing (QIP) due to the very long spin lifetimes (T1) and coherence times (T2) that are accessible in silicon [1] and because of the enormous investment to date in silicon MOS technology. Electron spin qubits in silicon can be localized using either dopant atoms (eg. phosphorus) [2,3] or in electrostat...
متن کاملWavelength and polarization variations of InAs/GaAs quantum dots emission at liquid Helium temperature via microphotoluminescence spectroscopy
In this paper, we investigate variation of the wavelength, intensity and polarization of the self-assembled InAs/GaAs quantum dots emission by microphotoluminescence spectroscopy at the liquid helium temperature. The microcavity wafer sample is grown by molecular beam epitaxy (MBE) and chemically etched into the micropillar structure (with elliptical cross section - long and short axis 2µm×1.5µ...
متن کاملWavelength and polarization variations of InAs/GaAs quantum dots emission at liquid Helium temperature via microphotoluminescence spectroscopy
In this paper, we investigate variation of the wavelength, intensity and polarization of the self-assembled InAs/GaAs quantum dots emission by microphotoluminescence spectroscopy at the liquid helium temperature. The microcavity wafer sample is grown by molecular beam epitaxy (MBE) and chemically etched into the micropillar structure (with elliptical cross section - long and short axis 2µm×1.5µ...
متن کاملQuantum Dot Quantum Computation
Within the last few years, quantum computation has developed into a truly interdisciplinary field involving the contributions of physicists, engineers, and computer scientists. There have been several experimental studies in order to find the proper physical realization of qubits to perform quantum computation. One of the most promising candidates for qubits is the spin state of the electrons, ...
متن کاملDesign and proof of concept for silicon-based quantum dot quantum bits
Spins based in silicon provide one of the most promising architectures for quantum computing. Quantum dots are an inherently scalable technology. Here, we combine these two concepts into a workable design for a silicon-germanium quantum bit. The novel structure incorporates vertical and lateral tunneling, provides controlled coupling between dots, and enables single electron occupation of each ...
متن کامل