منابع مشابه
Hybrid topological-spin qubit systems for two-qubit-spin gates
We investigate a hybrid quantum system involving spin qubits, based on the spins of electrons confined in quantum dots, and topological qubits, based on Majorana fermions. In such a system, gated control of the charge on the quantum dots allows transfer of quantum information between the spin and topological qubits, and the topological system can be used to facilitate transfer of spin qubits be...
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A new approach to single-qubit operations using exchange interactions of single electrons in gate-defined quantum dots has recently been demonstrated: the resonant exchange qubit. We show that two-qubit operations, specifically the controlled phase gate, can be performed between resonant exchange qubits very straightforwardly, using a single exchange pulse. This is in marked contrast to the bes...
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Quantum information and quantum computation are emerging research areas based on the properties of quantum resources, such as superposition and entanglement. In the quantum gate array version, the use of convenient and proper gates is essential. While these gates adopt theoretically convenient forms to reproduce computational algorithms, their design and feasibility depend on specific quantum s...
متن کاملQuantum Computing with Global One-and Two-Qubit Gates
We present generalized and improved constructions for simulating quantum computers with a polynomial slowdown on lattices composed of qubits on which certain global versions of oneand two-qubit operations can be performed.
متن کاملImproving the purity of one- and two-qubit gates
The experimental realization of one-qubit gates in solid state setups [1–3] and two-qubit gates in ion traps [4, 5] and Josephson junctions [6] has demonstrated that these systems provide remarkable coherence properties although the goal of 10−5 errors per gate operation [7] has not yet been accomplished experimentally. The unavoidable coupling to external degrees of freedomand the thereby caus...
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ژورنال
عنوان ژورنال: Journal of the Optical Society of America B
سال: 2007
ISSN: 0740-3224,1520-8540
DOI: 10.1364/josab.24.000172