Conveners
Short talks: "Topological color-superconductivity in QCD with one flavor", Noriyuki Sogabe (KEK, Institute of Modern Physics)
- Chair: Yoshimasa Hidaka (KEK)
Short talks: "Topological term, QCD anomaly, and the $\eta'$ chiral soliton lattice in rotating baryonic matter", Kentaro Nishimura (Keio U.)
- Chair: Yoshimasa Hidaka (KEK)
Short talks: "A physicist-friendly reformulation of the mod-two Atiyah-Patodi-Singer index", Yoshiyuki Matsuki (Osaka U.)
- Chair: Yoshimasa Hidaka (KEK)
Short talks: "Entanglement entropy in interacting field theories", Katsuta Sakai (KEK)
- Chair: Asato Tsuchiya (Shizuoka U.)
Short talks: "Momentum-space entanglement in scalar field theory on the fuzzy sphere", Shoichi Kawamoto (NTHU)
- Chair: Asato Tsuchiya (Shizuoka U.)
Short talks: "Topological Vertex/anti-Vertex and Supergroup Gauge Theory", Yuji Sugimoto (U. of Sci. and Tech. of China)
- Chair: Asato Tsuchiya (Shizuoka U.)
Short talks: (A) "Non-abelian DBI Action on Magnetized Extra Dimensions", Yoshihiko Abe (Kyoto U.)
- Chair: Yusuke Kimura (KEK)
Short talks: (B) "Instatons and Berry's connections on quantum graph", Inori Ueba (Kobe U.)
- Chair: Matsuo Sato (Hirosaki U.)
Short talks: (B) "Non-simply laced Lie groups and half-hypermultiplets in F-theory", Rinto Kuramochi (SOKENDAI)
- Chair: Matsuo Sato (Hirosaki U.)
Short talks: (A) "Catalytic Creation of Bubble Universe Induced by Quintessence in Five Dimensions", Issei Koga (Kyushu U.)
- Chair: Yusuke Kimura (KEK)
Short talks: (B) "Thermodynamics of TT-bar deformed O(N) vector model", Junichi Haruna (Kyoto U.)
- Chair: Matsuo Sato (Hirosaki U.)
Short talks: (A) "Restoration of chiral symmetry in cold and dense NambuーJona-Lasinio model with tensor renormalization group", Shinichiro Akiyama (U. of Tsukuba)
- Chair: Yusuke Kimura (KEK)
Short talks: (B) "Wavefunctions in dS/CFT revisited: principal series and double-trace deformations", Hoiki Liu (U. of Tokyo)
- Chair: Matsuo Sato (Hirosaki U.)
Short talks: (A) "Complex poles of QCD propagators and their interpretation", Yui Hayashi (Chiba U.)
- Chair: Yusuke Kimura (KEK)
Short talks: (A) "Complex Langevin analysis of four-dimensional SU(2) gauge theory with a theta term", Atis Yosprakob (SOKENDAI)
- Chair: Masafumi Fukuma (Kyoto U.)
Short talks: (B) "Wilson-'t Hooft lines as transfer matrices", Toshihiro Ota (Osaka U.)
- Chair: Katsushi Ito (Tokyo Inst. of Tech.)
Short talks: (B) "Non-perturbative Tests of Duality Cascades in Three Dimensional Supersymmetric Gauge Theories", Naotaka Kubo (YITP)
- Chair: Katsushi Ito (Tokyo Inst. of Tech.)
Short talks: (A) "Partial Deconfinement at Strong Coupling on the Lattice", Hiromasa Watanabe (U. of Tsukuba)
- Chair: Masafumi Fukuma (Kyoto U.)
Short talks: (B) "Superconformal index of the 6d (2,0) theory via the AdS/CFT correspondence", Shota Fujiwara (Tokyo Inst. of Tech.)
- Chair: Katsushi Ito (Tokyo Inst. of Tech.)
Short talks: (A) "Space-time structure in the Lorentzian type IIB matrix model in the large-N limit", Mitsuaki Hirasawa (SOKENDAI)
- Chair: Masafumi Fukuma (Kyoto U. )
Short talks: "JT gravity and the asymptotic Weil-Petersson volume", Yusuke Kimura (KEK)
- Chair: Nobuyuki Ishibashi (U. of Tsukuba)
Short talks: "Pole-skipping of scalar and vector fields in hyperbolic space", Mitsuhiro Nishida (Gwangju Inst. of Sci. and Tech.)
- Chair: Nobuyuki Ishibashi (U. of Tsukuba)
Short talks: "Current Driven Tricritical Point in Large-Nc Gauge Theory", Shin Nakamura (Chuo U.)
- Chair: Nobuyuki Ishibashi (U. of Tsukuba)
Short talks: "Implications of the weak gravity conjecture in anomalous quiver gauge theories", Tetsutaro Higaki (Keio U.)
- Chair: Hiroshi Suzuki (Kyushu U.)
Short talks: "The effects of fermions in the complex Langevin simulation of the Lorentzian type IIB matrix model", Kohta Hatakeyama (KEK)
- Chair: Hiroshi Suzuki (Kyushu U.)
Short talks: "Can QCD Axion explain the CMB anisotropy?", Kiyoharu Kawana (SNU)
- Chair: Hiroshi Suzuki (Kyushu U.)
Short talks: "Curvature perturbation and Anomaly explains dark energy", Yoshihisa Kitazawa (KEK)
- Chair: Hiroshi Suzuki (Kyushu U.)
Short talks: "Classical Statistical simulation of Quantum Field Theory", Takayuki Hirayama (Chubu U.)
- Chair: Hirotsugu Fujii (U. of Tokyo)
Short talks: "Relativistic fluid dynamics for spin polarization", Rajeev Singh (Inst. of Nucl. Phys. Polish Academy of Sciences)
- Chair: Hirotsugu Fujii (U. of Tokyo)
Short talks: "Applications of the twisted boson theory and linear response theory to XXZ chain", Yoshiki Fukusumi (Zagreb U.)
- Chair: Hirotsugu Fujii (U. of Tokyo)
Short talks: "Islands in Schwarzschild black holes", Yoshinori Matsuo (Osaka U.)
- Chair: Yoichi Kazama (Rikkyo U.)
Short talks: "Holographic Moving Mirror and Page Curve", Zixia Wei (YITP)
- Chair: Yoichi Kazama (Rikkyo U.)
Short talks: "KdV-charged black holes", Sotaro Sugishita (KEK)
- Chair: Yoichi Kazama (Rikkyo)
Superconductive gaps have topologically protected nodes if the fermions form the inter-chiral Cooper pair [1]. We generalize this Li and Haldane's argument to the color superconductivity in QCD with one flavor. Among several order parameters with different spins and colors, we find that the nodes in the phases with a simple color-spin structure have the vortices characterized by the Berry...
We study the ground states of low-density hadronic matter and high-density color-flavor locked color superconducting phase in three-flavor QCD at finite baryon chemical potential under rotation. We find that, in both cases under sufficiently fast rotation, the combination of the rotation-induced topological term for the η' meson and the QCD anomaly leads to an inhomogeneous condensate of the...
Gauge anomaly in 4-dimensions can be viewed as a current inflow into an extra-dimension, where the total phase of the fermion partition function is given in a gauge invariant way by the Atiyah-Patodi-Singer(APS) eta-invariant of a 5-dimensional Dirac operator. However, this formalism requires a non-local boundary condition, which makes the physical roles of edge/bulk modes unclear and the...
In this talk, I will study the quantum entanglement in the momentum space for scalar field theory on a fuzzy sphere. In an interacting quantum field theory, the degrees of freedom in momentum space show entanglement; it quantifies the correlation between the high/low momentum modes. On a fuzzy sphere, an example of noncommutative space, it is known that the UV and IR degrees of freedom show a...
We propose a new vertex formalism, called anti-refined topological vertex (anti-vertex for short), to compute the generalized topological string amplitude, which gives rise to the supergroup gauge theory partition function. We show the one-to-many correspondence between the gauge theory and the Calabi--Yau geometry, which is peculiar to the supergroup theory, and the relation between the...
We study the D-branes on the magnetized extra dimensions and corrections of the flux to the effective theories. Specifically we focus on toroidal compactifications of non-abelian DBI action, and compute the flux corrections to the gauge couplings, the Kaehler metrics of charged matters and the scalar four-point couplings. In this talk, we would like to show the results of the dimensional...
We investigate the bubble nucleation in five dimensional spacetime catalyzed by quintessence. We especially focus on decay of a metastable Minkowski vacuum to an anti-de Sitter vacuum and study dynamics of the bubble on which four dimensional expanding universe is realized. We also discuss the trans-Planckian censorship conjecture and impose a constraint on the parameter space of the...
In six-dimensional F-theory/Heterotic string theory, half-hypermultiplets arise only when they correspond to particular quaternionic Kähler symmetric spaces, which are mostly associated with the Freudenthal-Tits magic square. Motivated by the intriguing singularity structure previously found in such F-theory models with a gauge group SU(6), SO(12) or E_7, we investigate, as the final magical...
We analyze the chiral phase transition of the NambuーJona-Lasinio model in the cold and dense region on the lattice developing the Grassmann version of the anisotropic tensor renormalization group algorithm. The model is formulated with the KogutーSusskind fermion action. We use the chiral condensate as an order parameter to investigate the restoration of the chiral symmetry. The first-order...
We investigate an irrelevant deformation of 2D quantum field theories, called "TT-bar deformation". Although this is known as an integrable deformation, its quantum aspects have not been completely understood yet. For example, TT-bar deformation of the free massless O(N) vector model is said to be Nambu-Goto action in the static gauge. In this talk, we compute the thermal free energies in both...
We study wavefunctions of heavy scalars on de Sitter spacetime and their implications to dS/CFT correspondence. In contrast to light fields in the complementary series, heavy fields in the principal series oscillate outside the cosmological horizon. As a consequence, the quadratic term in the wavefunction does not follow a simple scaling and so it is hard to identify it with a conformal...
Gauge theory with a theta term has recently been of great interest, especially at $\theta=\pi$, where nontrivial phase structure is expected from the 't Hooft anomaly matching condition. However, it is difficult to study the theory numerically due to the severe sign problem. We try to overcome this by using the complex Langevin method. In our previous work, we apply the technique to the 2d...
We establish a correspondence between a class of Wilson-'t Hooft lines in four-dimensional N=2 supersymmetric gauge theories described by circular quivers and transfer matrices constructed from dynamical L-operators for trigonometric quantum integrable systems. We compute the vacuum expectation values of the Wilson-'t Hooft lines in a twisted product space S^1xR^3 by supersymmetric...
Partial deconfinement is proposed in the context of the deconfinement transition for the large N gauge theories, as the coexisting phenomenon of the confined and deconfined sectors in the space of color degrees of freedom. It is well-established analytically for weakly-coupled theories, while it remains unclear whether the above picture is valid at strong coupling. We provide some evidence for...
The Lorentzian type IIB matrix model is a promising candidate for a non-perturbative formulation of superstring theory. In the previous work, Monte Carlo calculations provided interesting results indicating the spontaneous breaking of SO(9) to SO(3) and the emergence of (3+1)-dimensional space-time. There, an approximation was used to avoid the sign problem, however. In this talk, we report...
We study the superconformal index of the 6d (2,0) theory by using the AdS/CFT correspondence. It is well known that on the gravity side at the large N limit, the index can be calculated from the contribution of the Kaluza Klein modes. For the AdS_5/CFT_4 cases, recent works show that in addition to Kaluza Klein modes, D3-branes wrapped on the compact space contribute to the index at the finite...
Motivated by the recent connection between pole-skipping phenomena of two point functions and four point out-of-time-order correlators (OTOCs), we study the pole structure of thermal two-point functions in d-dimensional conformal field theories (CFTs) in hyperbolic space. We derive the pole-skipping points of two-point functions of scalar and vector fields by three methods (one field theoretic...
We discover a new tricritical point realized only in nonequilibrium steady states, using the AdS/CFT correspondence. Our system is a (3+1)-dimensional strongly coupled large-Nc gauge theory. The tricritical point is associated with a chiral symmetry breaking under the presence of an electric current and a magnetic field. The critical exponents agree with those of the Landau theory of...
We argue a smallness of gauge couplings in abelian quiver gauge theories, taking the anomaly cancellation condition into account. In theories of our interest there exist chiral fermions leading to chiral gauge anomalies, and an anomaly-free gauge coupling tends to be small, and hence can give a non trivial condition of the weak gravity conjecture. As concrete examples, we consider U(1)^{k}...
We investigate the history of dark energy to explain the present magnitude. We assume the dark energy is the residual cosmological constant. The most important channel in the reheating process is the gluon pair productions by QCD trace anomaly. We argue dark energy decays rapidly by gluon pair emissions during the reheating and after the big bang. The reheating temperature is determined by the...
We study a classical theory which contains a Gaussian noise as a source. This source is responsible for the creation and annihilation of particle from the vacuum and the energy of the resultant configuration is same as the zero point energy of quantum field theory. We show that after taking the average over the samples, the perturbative expansion of the expectation value, n-point function, can...
Measurements made recently by the STAR collaboration show that the Lambda hyperons produced in relativistic heavy-ion collisions are subject to global spin polarization with respect to an axis coincident with the axis of rotation of the produced matter. Recently formulated formalism of relativistic hydrodynamics with spin, which is a generalization of the standard hydrodynamics, is a natural...
In this talk, I introduce two different approaches to treat the XXZ Heisenberg chain with twisted boundary conditions. One is the linear response theory, which treats the twists as a perturbation. The other is the twisted boson theory, which treats irrelevant terms as a perturbation after considering the effects of the twists. Surprisingly, these two formalisms cannot make the same results. We...
We study the Page curve for asymptotically flat eternal Schwarzschild black holes in four (or higher) spacetime dimensions. Before the Page time, the entanglement entropy grows linearly in time. After the Page time, the entanglement entropy of a given region outside the black hole is largely modified by the emergence of an island, which extends to the outer vicinity of the event horizon. As a...
We construct black hole geometries in 3d AdS with non-trivial values of KdV charges. The black holes are saddle points of the free energy that is holographically dual to that of the generalized Gibbs ensemble containing the chemical potentials of quantum KdV charges in 2d CFT. The introduction of the chemical potentials means the deformation of the boundary Hamiltonian which results in the...
