منابع مشابه
Non-planar spin bits beyond two loops
We study higher-loop orders of spin bit models underlying the nonplanar dynamics of N = 4 SYM gauge theory. In particular, we derive a ”tower” of non-planar identities involving products of site permutation operators. Such identities are then applied in the formulation of planarly consistent, testable conjectures for the full non-planar, higher-loop Hamiltonian of the su(2) spin-chain.
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We consider the Super Yang–Mills/spin system map to construct the SU(2) spin bit model at the level of two loops in Yang–Mills perturbation theory. The model describes a spin system with chaining interaction. In the large N limit the model is shown to be reduced to the two loop planar integrable spin chain.
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One fundamental requirement for quantum computation is to carry out universal manipulations of quantum bits at rates much faster than the qubit’s rate of decoherence. Recently, fast gate operations have been demonstrated in logical spin qubits composed of two electron spins where the rapid exchange of the two electrons permits electrically controllable rotations around one axis of the qubit. Ho...
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ژورنال
عنوان ژورنال: Physics
سال: 2011
ISSN: 1943-2879
DOI: 10.1103/physics.4.75