Center for Computing Research (CCR)
Center for Computing Research (CCR)

Publications

Results 26–50 of 60

Search results

Jump to search filters

Nuclear-driven electron spin rotations in a single donor coupled to a silicon quantum dot

Science

Carroll, M.S.; Harvey-Collard, Patrick; Jacobson, N.T.; Rudolph, Martin; Dominguez, Jason J.; Ten Eyck, Gregory A.; Wendt, Joel R.; Pluym, Tammy; Bays, Nathan R.; Lilly, Michael P.; Pioro-Ladriere, Michel

Silicon chips hosting a single donor can be used to store and manipulate one bit of quantum information. However, a central challenge for realizing quantum logic operations is to couple donors to one another in a controllable way. To achieve this, several proposals rely on using nearby quantum dots (QDs) to mediate an interaction. In this work, we demonstrate the coherent coupling of electron spins between a single 31 P donor and an enriched 28 Si metal-oxide-semiconductor few-electron QD. We show that the electron-nuclear spin interaction on the donor can drive coherent rotations between singlet and triplet electron spin states of the QD-donor system. Moreover, we are able to tune electrically the exchange interaction between the QD and donor electrons. Furthermore, the combination of single-nucleus-driven rotations and voltage-tunable exchange provides every key element for future all-electrical control of spin qubits, while requiring only a single QD and no additional magnetic field gradients

More Details
TYPE Journal Article YEAR 2016
DOIOSTI
Results 26–50 of 60
Results 26–50 of 60
Top