Conformal bootstrap bounds for the $U(1)$ Dirac spin liquid and $N=7$ Stiefel liquid
Conformal bootstrap bounds for the $U(1)$ Dirac spin liquid and $N=7$ Stiefel liquid
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$U(1)$ 狄拉克自旋液体和 $N=7$ Stiefel 液体的共形自举边界
DOI:
10.21468/scipostphys.13.2.014
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发表时间:
2021
期刊:
影响因子:
5.5
通讯作者:
Ning Su
中科院分区:
文献类型:
--
作者:
Yin;J. Rong;Ning Su
<jats:p>We apply the conformal bootstrap technique to study the
<jats:inline-formula><jats:alternatives><jats:tex-math>U(1)</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>U</mml:mi><mml:mo stretchy="false" form="prefix">(</mml:mo><mml:mn>1</mml:mn><mml:mo stretchy="false" form="postfix">)</mml:mo></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>
Dirac spin liquid (i.e. <jats:inline-formula><jats:alternatives><jats:tex-math>N_f=4</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>N</mml:mi><mml:mi>f</mml:mi></mml:msub><mml:mo>=</mml:mo><mml:mn>4</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>
QED<jats:inline-formula><jats:alternatives><jats:tex-math>_3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi /><mml:mn>3</mml:mn></mml:msub></mml:math></jats:alternatives></jats:inline-formula>)
and the newly proposed <jats:inline-formula><jats:alternatives><jats:tex-math>N=7</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>7</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>
Stiefel liquid (i.e. a conjectured 3d non-Lagrangian CFT without
supersymmetry). For the <jats:inline-formula><jats:alternatives><jats:tex-math>N_f=4</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>N</mml:mi><mml:mi>f</mml:mi></mml:msub><mml:mo>=</mml:mo><mml:mn>4</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>
QED<jats:inline-formula><jats:alternatives><jats:tex-math>_3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi /><mml:mn>3</mml:mn></mml:msub></mml:math></jats:alternatives></jats:inline-formula>,
we focus on the monopole operator and (<jats:inline-formula><jats:alternatives><jats:tex-math>SU(4)</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>S</mml:mi><mml:mi>U</mml:mi><mml:mo stretchy="false" form="prefix">(</mml:mo><mml:mn>4</mml:mn><mml:mo stretchy="false" form="postfix">)</mml:mo></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>
adjoint) fermion bilinear operator. We bootstrap their single
correlators as well as the mixed correlators between them. We first
discuss the bootstrap kinks from single correlators. Some exponents of
these bootstrap kinks are close to the expected values of
QED<jats:inline-formula><jats:alternatives><jats:tex-math>_3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi /><mml:mn>3</mml:mn></mml:msub></mml:math></jats:alternatives></jats:inline-formula>,
but we provide clear evidence that they should not be identified as the
QED<jats:inline-formula><jats:alternatives><jats:tex-math>_3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi /><mml:mn>3</mml:mn></mml:msub></mml:math></jats:alternatives></jats:inline-formula>.
By requiring the critical phase to be stable on the triangular and the
kagome lattice, we obtain rigorous numerical bounds for the
<jats:inline-formula><jats:alternatives><jats:tex-math>U(1)</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>U</mml:mi><mml:mo stretchy="false" form="prefix">(</mml:mo><mml:mn>1</mml:mn><mml:mo stretchy="false" form="postfix">)</mml:mo></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>
Dirac spin liquid and the Stiefel liquid. For the triangular and kagome
Dirac spin liquid, the rigorous lower bounds of the monopole operator’s
scaling dimension are <jats:inline-formula><jats:alternatives><jats:tex-math>1.046</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>1.046</mml:mn></mml:math></jats:alternatives></jats:inline-formula>
and <jats:inline-formula><jats:alternatives><jats:tex-math>1.105</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>1.105</mml:mn></mml:math></jats:alternatives></jats:inline-formula>,
respectively. These bounds are consistent with the latest Monte Carlo
results.</jats:p>
影响因子:
5.4
作者:
Gukov, Sergei
通讯作者:
Gukov, Sergei