Dynamical time-reversal symmetry breaking and photo-induced chiral spin liquids in frustrated Mott insulators
被引:113
作者:
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Claassen, Martin
[1
,2
,3
]
Jiang, Hong-Chen
论文数: 0引用数: 0
h-index: 0
机构:
SLAC, Stanford Inst Mat & Energy Sci, Stanford, CA 94025 USA
Stanford Univ, Stanford, CA 94025 USAStanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
Jiang, Hong-Chen
[2
,3
]
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Moritz, Brian
[2
,3
]
Devereaux, Thomas P.
论文数: 0引用数: 0
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SLAC, Stanford Inst Mat & Energy Sci, Stanford, CA 94025 USA
Stanford Univ, Stanford, CA 94025 USA
Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USAStanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
Devereaux, Thomas P.
[2
,3
,4
]
机构:
[1] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
[2] SLAC, Stanford Inst Mat & Energy Sci, Stanford, CA 94025 USA
[3] Stanford Univ, Stanford, CA 94025 USA
[4] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA
The search for quantum spin liquids in frustrated quantum magnets recently has enjoyed a surge of interest, with various candidate materials under intense scrutiny. However, an experimental confirmation of a gapped topological spin liquid remains an open question. Here, we show that circularly polarized light can provide a knob to drive frustrated Mott insulators into a chiral spin liquid, realizing an elusive quantum spin liquid with topological order. We find that the dynamics of a driven Kagome Mott insulator is well-captured by an effective Floquet spin model, with heating strongly suppressed, inducing a scalar spin chirality S-i . (S-j x S-k) term which dynamically breaks time-reversal while preserving SU(2) spin symmetry. We fingerprint the transient phase diagram and find a stable photo-induced chiral spin liquid near the equilibrium state. The results presented suggest employing dynamical symmetry breaking to engineer quantum spin liquids and access elusive phase transitions that are not readily accessible in equilibrium.
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Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA
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Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USABoston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
Bukov, Marin
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Kolodrubetz, Michael
论文数: 0引用数: 0
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Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USABoston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
Kolodrubetz, Michael
;
Polkovnikov, Anatoli
论文数: 0引用数: 0
h-index: 0
机构:
Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USABoston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
机构:
Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA
机构:
Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USABoston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
Bukov, Marin
;
Kolodrubetz, Michael
论文数: 0引用数: 0
h-index: 0
机构:
Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USABoston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
Kolodrubetz, Michael
;
Polkovnikov, Anatoli
论文数: 0引用数: 0
h-index: 0
机构:
Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USABoston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA