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000188051 1001_ $$0P:(DE-Juel1)145051$$aMehl, Sebastian$$b0$$eCorresponding Author$$ufzj
000188051 245__ $$aFault-tolerant quantum computation for singlet-triplet qubits with leakage errors
000188051 260__ $$aCollege Park, Md.$$bAPS$$c2015
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000188051 520__ $$aWe describe and analyze leakage errors of singlet-triplet qubits. Even though leakage errors are a natural problem for spin qubits encoded using quantum dot arrays, they have obtained little attention in previous studies. We describe the realization of leakage correction protocols that can be implemented together with the quantum error correction protocol of the surface code. Furthermore we construct explicit leakage reduction units that need, in the ideal setup, as few as three manipulation steps. Our study shows that leakage errors can be corrected without the need of measurements and at the cost of only a few additional ancilla qubits and gate operations compared to standard quantum error correction codes.
000188051 536__ $$0G:(DE-HGF)POF3-144$$a144 - Controlling Collective States (POF3-144)$$cPOF3-144$$fPOF III$$x0
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000188051 7001_ $$0P:(DE-HGF)0$$aBluhm, Hendrik$$b1
000188051 7001_ $$0P:(DE-Juel1)143759$$aDiVincenzo, David$$b2$$ufzj
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