dorsal/arxiv
View SchemaDecoherence in the dynamical quantum phase transition of the transverse Ising chain
| Authors | Sarah Mostame, Gernot Schaller, Ralf Schützhold |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0703153 |
| URL | https://arxiv.org/abs/quant-ph/0703153 |
| DOI | 10.1103/PhysRevA.76.030304 |
| Journal | Physical Review A 76, 030304(R), 2007 |
Abstract
For the prototypical example of the Ising chain in a transverse field, we study the impact of decoherence on the sweep through a second-order quantum phase transition. Apart from the advance in the general understanding of the dynamics of quantum phase transitions, these findings are relevant for adiabatic quantum algorithms due to the similarities between them. It turns out that (in contrast to first-order transitions studied previously) the impact of decoherence caused by a weak coupling to a rather general environment increases with system size (i.e., number of spins/qubits), which might limit the scalability of the system.
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"abstract": "For the prototypical example of the Ising chain in a transverse field, we\nstudy the impact of decoherence on the sweep through a second-order quantum\nphase transition. Apart from the advance in the general understanding of the\ndynamics of quantum phase transitions, these findings are relevant for\nadiabatic quantum algorithms due to the similarities between them. It turns out\nthat (in contrast to first-order transitions studied previously) the impact of\ndecoherence caused by a weak coupling to a rather general environment increases\nwith system size (i.e., number of spins/qubits), which might limit the\nscalability of the system.",
"arxiv_id": "quant-ph/0703153",
"authors": [
"Sarah Mostame",
"Gernot Schaller",
"Ralf Sch\u00fctzhold"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.76.030304",
"journal_ref": "Physical Review A 76, 030304(R), 2007",
"title": "Decoherence in the dynamical quantum phase transition of the transverse Ising chain",
"url": "https://arxiv.org/abs/quant-ph/0703153"
},
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