期刊
PHYSICAL REVIEW LETTERS
卷 109, 期 26, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.260601
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资金
- NSF-DMR [1004589]
- NSF [PHY05-51164]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1004589] Funding Source: National Science Foundation
A renormalization group approach is used to show that a one-dimensional system of bosons subject to a lattice quench exhibits a finite-time dynamical phase transition where an order parameter within a light cone increases as a nonanalytic function of time after a critical time. Such a transition is also found for a simultaneous lattice and interaction quench where the effective scaling dimension of the lattice becomes time dependent, crucially affecting the time evolution of the system. Explicit results are presented for the time evolution of the boson interaction parameter and the order parameter for the dynamical transition as well as for more general quenches. DOI: 10.1103/PhysRevLett.109.260601
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