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Generation of Spin Entanglement in Nonequilibrium Quantum Dots
Stefan Legel, Jürgen König, Guido Burkard +1
We propose schemes for generating spatially-separated spin entanglement in systems of two quantum dots with onsite Coulomb repulsion weakly coupled to a joint electron reservoir. A…
Spin qubits in graphene quantum dots
B. Trauzettel, Denis V. Bulaev, Daniel Loss +1
We propose how to form spin qubits in graphene. A crucial requirement to achieve this goal is to find quantum dot states where the usual valley degeneracy in bulk graphene is lifte…
Quantum gates between capacitively coupled double quantum dot two-spin qubits
Dimitrije Stepanenko, Guido Burkard
We study the two-qubit controlled-not gate operating on qubits encoded in the spin state of a pair of electrons in a double quantum dot. We assume that the electrons can tunnel bet…
Universal quantum computing with correlated spin-charge states
Jordan Kyriakidis, Guido Burkard
We propose a universal quantum computing scheme in which the orthogonal qubit states and are identical in their single-particle spin and charge properties. Each qubit i…
Full control of qubit rotations in a voltage-biased superconducting flux qubit
Luca Chirolli, Guido Burkard
We study a voltage-controlled version of the superconducting flux qubit [Chiorescu et al., Science 299, 1869 (2003)] and show that full control of qubit rotations on the entire Blo…
Universal set of quantum gates for double-dot spin qubits with fixed interdot coupling
Ronald Hanson, Guido Burkard
We propose a set of universal gate operations for the singlet-triplet qubit realized by two electron spins in a double quantum dot, in the presence of a fixed inhomogeneous magneti…