dorsal/arxiv
View SchemaSimulating Arbitrary Pair-Interactions by a Given Hamiltonian: Graph-Theoretical Bounds on the Time Complexity
| Authors | P. Wocjan, D. Janzing, Th. Beth |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0106077 |
| URL | https://arxiv.org/abs/quant-ph/0106077 |
Abstract
We use an n-spin system with permutation symmetric zz-interaction for simulating arbitrary pair-interaction Hamiltonians. The calculation of the required time overhead is mathematically equivalent to a separability problem of n-qubit density matrices. We derive lower and upper bounds in terms of chromatic index and the spectrum of the interaction graph. The complexity measure defined by such a computational model is related to gate complexity and a continuous complexity measure introduced in a former paper. We use majorization of graph spectra for classifying Hamiltonians with respect to their computational power.
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"abstract": "We use an n-spin system with permutation symmetric zz-interaction for\nsimulating arbitrary pair-interaction Hamiltonians. The calculation of the\nrequired time overhead is mathematically equivalent to a separability problem\nof n-qubit density matrices. We derive lower and upper bounds in terms of\nchromatic index and the spectrum of the interaction graph. The complexity\nmeasure defined by such a computational model is related to gate complexity and\na continuous complexity measure introduced in a former paper. We use\nmajorization of graph spectra for classifying Hamiltonians with respect to\ntheir computational power.",
"arxiv_id": "quant-ph/0106077",
"authors": [
"P. Wocjan",
"D. Janzing",
"Th. Beth"
],
"categories": [
"quant-ph"
],
"title": "Simulating Arbitrary Pair-Interactions by a Given Hamiltonian: Graph-Theoretical Bounds on the Time Complexity",
"url": "https://arxiv.org/abs/quant-ph/0106077"
},
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