Abstract
The structure function of a random matrix ensemble can be specified in terms of the covariance of the linear statistics \(\sum _{j=1}^N e^{i k_1 \lambda _j}\), \(\sum _{j=1}^N e^{-i k_2 \lambda _j}\) for Hermitian matrices, and the same with the eigenvalues \(\lambda _j\) replaced by the eigenangles \(\theta _j\) for unitary matrices. As such it can be written in terms of the Fourier transform of the density-density correlation \(\rho _{(2)}\). For the circular \(\beta \)-ensemble of unitary matrices, and with \(\beta \) even, we characterise the bulk scaling limit of \(\rho _{(2)}\) as the solution of a linear differential equation of order \(\beta + 1\)—a duality relates \(\rho _{(2)}\) with \(\beta \) replaced by \(4/\beta \) to the same equation. Asymptotics obtained in the case \(\beta = 6\) from this characterisation are combined with previously established results to determine the explicit form of the degree 10 palindromic polynomial in \(\beta /2\) which determines the coefficient of \(|k|^{11}\) in the small |k| expansion of the structure function for general \(\beta > 0\). For the Gaussian unitary ensemble we give a reworking of a recent derivation and generalisation, due to Okuyama, of an identity relating the structure function to simpler quantities in the Laguerre unitary ensemble first derived in random matrix theory by Brézin and Hikami. This is used to determine various scaling limits, many of which relate to the dip-ramp-plateau effect emphasised in recent studies of many body quantum chaos, and allows too for rates of convergence to be established.
Similar content being viewed by others
Notes
Duy Khanh Trinh (personal correspondence) has pointed out that the normalising factor \((-\kappa )^k\) on the RHS should be deleted and replaced by a factor of \(-(1/\kappa )\).
The package Mathematica can verify this, but was unable to integrate the LHS independently.
References
Forrester, P.J.: Log-Gases and Random Matrices. Princeton University Press, Princeton (2010)
Pastur, L., Shcherbina, M.: Eigenvalue Distribution of Large Random Matrices. American Mathematical Society, Providence, RI (2011)
Erdös, L., Yau, H.-T.: A Dynamical Approach to Random Matrix Theory, Courant Lecture Notes in Mathematics, vol. 28. American Mathematics Society, Providence (2017)
Montgomery, H.L.: The pair correlation of zeros of the zeta function. In: Proc. Sympos. Pure Math., vol. 24. American Mathematical Society, Providence, RI, 181–193 (1973)
Bohigas, O.: Compound nucleus resonances, random matrices, quantum chaos. In: Mezzadri, F., Snaith, N.C. (eds.) Recent Perspectives in Random Matrix Theory and Number theory. London Mathematical Society Lecture Note Series, vol. 322, pp. 147–183. Cambridge University Press, Cambridge (2005)
Dyson, F.J., Mehta, M.L.: Statistical theory of energy levels of complex systems. IV. J. Math. Phys. 4, 701–712 (1963)
Leblé, T.: CLT for fluctuations of linear statistics in the Sine-\(\beta \) process. Int. Math. Res. Not. 2019, 020 (2019)
Lambert, G.: Mesoscopic central limit theorem for the circular ensembles and applications. Electron. J. Probab. 26, 1–33 (2021)
Forrester, P.J., Jancovici, B., McAnally, D.S.: Analytic properties of the structure function for the one-dimensional one-component log-gas. J. Stat. Phys. 102, 737–780 (2000)
Witte, N.S., Forrester, P.J.: Moments of the Gaussian \(\beta \) ensembles and the large \(N\) expansion of the densities. J. Math. Phys. 55, 083302 (2014)
Riser, R., Osipov, V.A., Kanzieper, E.: Power spectrum of long eigenlevel sequences in quantum chaotic systems. Phys. Rev. Lett. 118, 204101 (2017)
Riser, R., Osipov, V.A., Kanzieper, E.: Nonperturbative theory of power spectrum in complex systems. Ann. Phys. 413, 168065 (2020)
Cotler, J.S., Gur-Ari, G., Hanada, M., Polchinski, J., Saad, P., Shenker, S.H., Stanford, D., Streicher, A., Tezuka, M.: Black holes and random matrices. JHEP 1705, 118 (2017). Erratum: [JHEP 1809 (2018), 002]
del Campo, A., Molina-Vilaplana, J., Sonner, J.: Scrambling the spectral form factor: unitarity constraints and exact results. Phys. Rev. D 95, 126008 (2017)
Yan, C.: Spectral form factor. [web resource dated June 28, 2020]
Cotler, J.S., Hunter-Jones, N., Liu, J., Yoshida, B.: Chaos, complexity, and random matrices. JHEP 1711, 048 (2017)
Torres-Herrera, E.J., García-García, A.M., Santos, L.F.: Generic dynamical features of quenched interacting quantum systems: Survival probability, density imbalance, and out-of-time-ordered correlator. Phys. Rev. B 97, 060303 (2018)
Chenu, A., Molina-Vilaplana, J., del Campo, A.: Work statistics, Loschmidt echo and information scrambling in chaotic quantum systems. Quantum 3, 127 (2019)
Cotler, J.S., Hunter-Jones, N.: Spectral decoupling in many-body quantum chaos. arXiv:1911.02026
Xu, Z., Chenu, A., Prosen, T., del Campo, A.: Thermofield dynamics: quantum chaos versus decoherence. Phys. Rev. B 103, 064309 (2021)
Leviandier, L., Lombardi, M., Jost, R., Pique, J.P.: Fourier transform: a tool to measure statistical level properties in very complex spectra. Phys. Rev. Lett. 56, 2449 (1986)
Brézin, E., Hikami, S.: Spectral form factor in a random matrix theory. Phys. Rev. E 55, 4067–4083 (1997)
Okuyama, K.: Spectral form factor and semi-circle law in the time direction. JHEP 2019, 161 (2019)
Forrester, P.J.: Recurrence equations for the computation of correlations in the \(1/r^2\) quantum many body system. J. Stat. Phys. 72, 39–50 (1993)
Kaneko, J.: Selberg integrals and hypergeometric functions associated with Jack polynomials. SIAM J. Math. Anal. 24, 1086–1110 (1993)
Forrester, P.J.: Addendum to Selberg correlation integrals and the \(1/r^2\) quantum many body system. Nucl. Phys. B 416, 377–385 (1994)
Forrester, P.J., Rains, E.M.: A Fuchsian matrix differential equation for Selberg correlation integrals. Commun. Math. Phys. 309, 771–792 (2012)
Rahman, A.A., Forrester, P.J.: Linear differential equations for the resolvents of the classical matrix ensembles. Random Matrices Th. Appl. (2020). https://doi.org/10.1142/S2010326322500034
Forrester, P.J., Trinh, A.K.: Functional form for the leading correction to the distribution of the largest eigenvalue in the GUE and LUE. J. Math. Phys 59, 053302 (2018)
Kumar, S.: Recursion for the smallest eigenvalue density of beta-Wishart–Laguerre Ensemble. J. Stat. Phys. 175, 126 (2019)
Forrester, P.J., Trinh, A.K.: Finite-size corrections at the hard edge for the Laguerre \(\beta \) ensemble. Stud. Appl. Math. 143, 315–336 (2019)
Forrester, P.J., Kumar, S.: Recursion scheme for the largest \(\beta \)–Wishart–Laguerre eigenvalue and Landauer conductance in quantum transpor. J. Phys. A 52, 42LT02 (2019)
Forrester, P.J., Li, S.-H., Trinh, A.K.: Asymptotic correlations with corrections for the circular Jacobi \(\beta \)-ensemble. arXiv:2008.13124
Forrester, P.J., Witte, N.S.: Application of the \(\tau \)-function theory of Painlevé equations to random matrices: PVI, the JUE, CyUE, cJUE and scaled limits. Nagoya Math. J. 174, 29–114 (2004)
Forrester, P.J., Rahman, A.A., Witte, N.S.: Large \(N\) expansions for the Laguerre and Jacobi \(\beta \) ensembles from the loop equations. J. Math. Phys. 58, 113303 (2017)
Dumitriu, I., Paquette, E.: Global fluctuations for linear statistics of \(\beta \) Jacobi ensembles. Rand. Matrices Theory Appl. 01, 1250013 (2012)
Forrester, P.J.: Exact integral formulas and asymptotics for the correlations in the \(1/r^2\) quantum many body system. Phys. Lett. A 179, 127–130 (1993)
Witte, N.S., Forrester, P.J.: Loop equation analysis of the circular ensembles. JHEP 2015, 173 (2015)
Ha, Z.N.C.: Fractional statistics in one dimension: View from an exactly solvable model. Nucl. Phys. B 435, 604–636 (1995)
Tracy, C.A., Widom, H.: Fredholm determinants, differential equations and matrix models. Commun. Math. Phys. 163, 33–72 (1994)
Haagerup, U., Thorbjørnsen, S.: Random matrices with complex Gaussian entries. Expo. Math. 21, 293–337 (2003)
Ledoux, M.: Differential operators and spectral distributions of invariant ensembles from the classical orthogonal polynomials. The continuous case, Electron. J. Probab. 9, 177–208 (2004)
Götze, F., Tikhomirov, A.: The rate of convergence for spectra of GUE and LUE matrix ensembles. Cent. Eur. J. Math. 3, 666–704 (2005)
Ullah, N.: Probability density function of the single eigenvalue outside the semicircle using the exact Fourier transform. J. Math. Phys. 26, 2350–2351 (1985)
Drukker, N., Gross, D.J.: An exact prediction of \(N=4\) SUSYM theory for string theory. J. Math. Phys. 42, 2896–2914 (2001)
Bencheikh, K., Nieto, L.M.: On the density profile in Fourier space of harmonically confined ideal quantum gases in \(d\) dimensions. J. Phys. A 40, 13503–13510 (2007)
van Zyl, B.P.: Wigner distribution for a harmonically trapped gas of ideal fermions and bosons at arbitrary temperature and dimensionality. J. Phys. A 45, 315302 (2012)
Forrester, P.J.: Moments of the ground state density for the \(d\)-dimensional Fermi gas in an harmonic trap. Random Matrices Th.Appl. (2020). https://doi.org/10.1142/S2010326321500180
Okuyama, K.: Connected correlator of 1/2 BPS Wilson loops in \({\cal{N}} = 4\) SYM. JHEP 2018, 037 (2018)
Cunden, F.D., Mezzadri, F., O’Connell, N., Simm, N.: Moments of random matrices and hypergeometric orthogonal polynomials. Commun. Math. Phys. 369, 1091–1145 (2019)
Haagerup, U., Thornbjornsen, S.: mptotic expansions for the Gaussian unitary ensemble. Infin. Dimens. Anal. Quantum Probab. Relat. Top. 15, 1250003 (2012)
Szegö, G.: Orthogonal Polynomials, 4th edn. American Mathematical Society, Providence, RI (1975)
Forrester, P.J.: The spectrum edge of random matrix ensembles. Nucl. Phys. B 402, 709–728 (1993)
Akemann, G., Damgaard, P.H.: Wilson loops in N=4 supersymmetric Yang–Mills theory from random matrix theory. Phys. Lett. B 513, 179–186 (2001). Erratum: [Phys. Lett. B 524, (2002) 400
Giombi, S., Pestun, V., Ricci, R.: Notes on supersymmetric Wilson loops on a two-sphere. JHEP 1007, 088 (2010)
Canazas Garary, A.F., Faraggi, A., Mück, W.: Note on generating functions and connected correlators of \(1/2\)-BPS Wilson loops in \({\cal{N}} = 4\) SYM theory, JHEP 1908, 149 (2019)
Brézin, E., Hikami, S.: Random Matrix Theory with an External Source. Springer, Singapore (2016)
Forrester, P.J., Frankel, N.E., Garoni, T.M.: Asymptotic form of the density profile for Gaussian and Laguerre random matrix ensembles with orthogonal and symplectic symmetry. J. Math. Phys. 47, 023301 (2006)
Moecklin, E.: Asymptotische entwicklungen der laguerreschen polynome. Commun. Math. Helv. 7, 24–46 (1934)
Forrester, P.J.: Spectral density asymptotics for Gaussian and Laguerre \(\beta \)-ensembles in the exponentially small region. J. Phys. A 45, 075206 (2012)
Okuyama, K.: Eigenvalue instantons in the spectral form factor of random matrix model. JHEP 2019, 147 (2019)
Liu, J.: Spectral form factors and late time quantum chaos. Phys. Rev. D 98, 086026 (2018)
Okounkov, A.: Generating functions for intersection numbers on moduli spaces of curves. Int. Math. Res. Not. 18, 933–957 (2002)
Okuyama, K., Sakai, K.: JT gravity, KdV equations and macroscopic loop operators. JHEP 2001, 156 (2020)
Brézin, E., Hikami, S.: Vertices from replica in a random matrix theory. J. Phys. A 40, 13545–13566 (2007)
Acknowledgements
This research is part of the program of study supported by the Australian Research Council Centre of Excellence ACEMS, and the Discovery Project grant DP210102887.
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by Giulio Biroli.
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Forrester, P.J. Differential Identities for the Structure Function of Some Random Matrix Ensembles. J Stat Phys 183, 33 (2021). https://doi.org/10.1007/s10955-021-02767-5
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s10955-021-02767-5