Parity and the modular bootstrap

Parity and the modular bootstrap
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奇偶校验和模块化引导程序

DOI:
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发表时间:
2018
期刊:
影响因子:
5.5
通讯作者:
Edgar Shaghoulian
Edgar Shaghoulian
中科院分区:
物理与天体物理2区
文献类型:
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作者:
Tarek Anous;R. Mahajan;Edgar Shaghoulian

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<jats:p>我们考虑酉,模不变,二维CFTs, 在宇称变换下不变 <jats:inline-formula><jats:alternatives><jats:tex-math>P</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi></mml:math></jats:alternatives></jats:inline-formula>。 组合<jats:inline-formula><jats:alternatives><jats:tex-math>P</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi></mml:math></jats:alternatives></jats:inline-formula> 带模逆<jats:inline-formula><jats:alternatives><jats:tex-math>S</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>S</mml:mi></mml:math></jats:alternatives></jats:inline-formula> 导致连续族的不动点 <jats:inline-formula><jats:alternatives><jats:tex-math>SP</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>P</mml:mi></mml:mrow></mml:math></jats:alternatives></jats:inline-formula> 转型存在该不动点轨迹的一个特定子集 沿着正的左移和右移温度线 满足<jats:inline-formula><jats:alternatives><jats:tex-math>η_L eta_R = 4 π ^2</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>β</mml:mi><mml:mi>L</mml:mi></mml:msub><mml:msub><mml:mi>β</mml:mi><mml:mi>R</mml:mi></mml:msub><mml:mo>=</mml:mo><mml:mn>4</mml:mn><mml:msup><mml:mi>π</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>。 我们用这个固定轨迹来证明Hartman,Keller和 斯多伊卡认为大的-<jats:inline-formula><jats:alternatives><jats:tex-math>c</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>c c</mml:mi></mml:math></jats:alternatives></jats:inline-formula>的自由能 CFT<jats:inline-formula><jats:alternatives><jats:tex-math>_2</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi /><mml:mn>2</mml:mn></mml:msub></mml:math></jats:alternatives></jats:inline-formula> 具有适当稀疏的低位频谱, AdS_3<jats:inline-formula><jats:alternatives><jats:tex-math></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> 所有温度和角势下的引力我们还使用 固定轨迹推广模块化自助方程,获得 新的约束算子谱,并提供了一个新的证明 扭转间隙小于 <jats:inline-formula><jats:alternatives><jats:tex-math>(c-1)/12</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo stretchy="false" form="prefix">(</mml:mo><mml:mi>c</mml:mi><mml:mo>-</mml:mo><mml:mn>1</mml:mn><mml:mo stretchy="false" form="postfix">)</mml:mo><mml:mi>/</mml:mi><mml:mn>12</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula> 当<jats:inline-formula><jats:alternatives><jats:tex-math>c&gt;1时</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>,c</mml:mi><mml:mo>&gt;</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>。 在逃<jats:inline-formula><jats:alternatives><jats:tex-math>c</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>c</mml:mi></mml:math></jats:alternatives></jats:inline-formula> 我们证明了第一激发原色的算符维数为 <jats:inline-formula><jats:alternatives><jats:tex-math>(h,overline{h})</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo stretchy="false" form="prefix">(</mml:mo><mml:mi>h</mml:mi><mml:mo>,</mml:mo><mml:mover><mml:mi>h</mml:mi><mml:mo accent="true">′</mml:mo></mml:mover><mml:mo stretchy="false" form="postfix"></mml:mo></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>)平面中的区域 这比<jats:inline-formula><jats:alternatives><jats:tex-math>h+overline{h}&lt;c/6</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>h</mml:mi><mml:mo>+</mml:mo><mml:mover><mml:mi>h</mml:mi><mml:mo accent="true">&lt;$</mml:mo></mml:mover><mml:mo>&gt;</mml:mo><mml:mi>c</mml:mi><mml:mi>/</mml:mi><mml:mn>6</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>小得多。 我们关于算子谱的自由能和约束的结果 扩展到理论没有宇称对称通过建设 辅助奇偶不变配分函数。</jats:p>
<jats:p>We consider unitary, modular invariant, two-dimensional CFTs which are invariant under the parity transformation <jats:inline-formula><jats:alternatives><jats:tex-math>P</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi></mml:math></jats:alternatives></jats:inline-formula>. Combining <jats:inline-formula><jats:alternatives><jats:tex-math>P</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi></mml:math></jats:alternatives></jats:inline-formula> with modular inversion <jats:inline-formula><jats:alternatives><jats:tex-math>S</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>S</mml:mi></mml:math></jats:alternatives></jats:inline-formula> leads to a continuous family of fixed points of the <jats:inline-formula><jats:alternatives><jats:tex-math>SP</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>P</mml:mi></mml:mrow></mml:math></jats:alternatives></jats:inline-formula> transformation. A particular subset of this locus of fixed points exists along the line of positive left- and right-moving temperatures satisfying <jats:inline-formula><jats:alternatives><jats:tex-math>eta_L eta_R = 4pi^2</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>β</mml:mi><mml:mi>L</mml:mi></mml:msub><mml:msub><mml:mi>β</mml:mi><mml:mi>R</mml:mi></mml:msub><mml:mo>=</mml:mo><mml:mn>4</mml:mn><mml:msup><mml:mi>π</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>. We use this fixed locus to prove a conjecture of Hartman, Keller, and Stoica that the free energy of a large-<jats:inline-formula><jats:alternatives><jats:tex-math>c</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>c</mml:mi></mml:math></jats:alternatives></jats:inline-formula> CFT<jats:inline-formula><jats:alternatives><jats:tex-math>_2</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi /><mml:mn>2</mml:mn></mml:msub></mml:math></jats:alternatives></jats:inline-formula> with a suitably sparse low-lying spectrum matches that of AdS<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> gravity at all temperatures and all angular potentials. We also use the fixed locus to generalize the modular bootstrap equations, obtaining novel constraints on the operator spectrum and providing a new proof of the statement that the twist gap is smaller than <jats:inline-formula><jats:alternatives><jats:tex-math>(c-1)/12</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo stretchy="false" form="prefix">(</mml:mo><mml:mi>c</mml:mi><mml:mo>−</mml:mo><mml:mn>1</mml:mn><mml:mo stretchy="false" form="postfix">)</mml:mo><mml:mi>/</mml:mi><mml:mn>12</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula> when <jats:inline-formula><jats:alternatives><jats:tex-math>c>1</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>c</mml:mi><mml:mo>></mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>. At large <jats:inline-formula><jats:alternatives><jats:tex-math>c</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>c</mml:mi></mml:math></jats:alternatives></jats:inline-formula> we show that the operator dimension of the first excited primary lies in a region in the <jats:inline-formula><jats:alternatives><jats:tex-math>(h,overline{h})</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo stretchy="false" form="prefix">(</mml:mo><mml:mi>h</mml:mi><mml:mo>,</mml:mo><mml:mover><mml:mi>h</mml:mi><mml:mo accent="true">¯</mml:mo></mml:mover><mml:mo stretchy="false" form="postfix">)</mml:mo></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>-plane that is significantly smaller than <jats:inline-formula><jats:alternatives><jats:tex-math>h+overline{h}<c/6</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>h</mml:mi><mml:mo>+</mml:mo><mml:mover><mml:mi>h</mml:mi><mml:mo accent="true">¯</mml:mo></mml:mover><mml:mo>></mml:mo><mml:mi>c</mml:mi><mml:mi>/</mml:mi><mml:mn>6</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>. Our results for the free energy and constraints on the operator spectrum extend to theories without parity symmetry through the construction of an auxiliary parity-invariant partition function.</jats:p>