dorsal/arxiv
View SchemaEntanglement and dynamics of spin-chains in periodically-pulsed magnetic fields: accelerator modes
| Authors | T. Boness, S. Bose, T. S. Monteiro |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0602106 |
| URL | https://arxiv.org/abs/quant-ph/0602106 |
| DOI | 10.1103/PhysRevLett.96.187201 |
Abstract
We study the dynamics of a single excitation in a Heisenberg spin-chain subjected to a sequence of periodic pulses from an external, parabolic, magnetic field. We show that, for experimentally reasonable parameters, a pair of counter-propagating coherent states are ejected from the centre of the chain. We find an illuminating correspondence with the quantum time evolution of the well-known paradigm of quantum chaos, the Quantum Kicked Rotor (QKR). From this we can analyse the entanglement production and interpret the ejected coherent states as a manifestation of so-called `accelerator modes' of a classically chaotic system.
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"abstract": "We study the dynamics of a single excitation in a Heisenberg spin-chain\nsubjected to a sequence of periodic pulses from an external, parabolic,\nmagnetic field. We show that, for experimentally reasonable parameters, a pair\nof counter-propagating coherent states are ejected from the centre of the\nchain. We find an illuminating correspondence with the quantum time evolution\nof the well-known paradigm of quantum chaos, the Quantum Kicked Rotor (QKR).\n From this we can analyse the entanglement production and interpret the\nejected coherent states as a manifestation of so-called `accelerator modes\u0027 of\na classically chaotic system.",
"arxiv_id": "quant-ph/0602106",
"authors": [
"T. Boness",
"S. Bose",
"T. S. Monteiro"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.96.187201",
"title": "Entanglement and dynamics of spin-chains in periodically-pulsed magnetic fields: accelerator modes",
"url": "https://arxiv.org/abs/quant-ph/0602106"
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