Talk Title ブラックホールエントロピー—ループ量子重力理論に基づくアプローチ—
Speaker Takashi Tamaki (Nihon U., Fukushima)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1607.06888 [hep-th]

Talk Title Massive higher spin fields in curved spacetime and necessity of non-minimal couplings
Speaker Masafumi Fukuma (Kyoto U.)
Time & Location , Room 458
Abstract Free massive higher spin fields in weak background gravitational fields are discussed. Contrary to the spin 1 case, higher spin fields should have nontrivial non-minimal couplings to the curvature. A precise analysis is given for the spin 2 case, and it is shown that two conditions should be satisfied among five non-minimal coupling constants, which we derive both in the Hamiltonian and Lagrangian formalisms. It is checked that the linearized limit of the massive gravity theory indeed has the non-minimal couplings that satisfy the conditions. We also discuss the form of the non-minimal couplings for the spin 3 case.
Reference(s) arXiv:1605.03363 [hep-th]

Talk Title Geodesic Witten diagrams with an external spinning field
Speaker Kotaro Tamaoka (Osaka U.)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1609.04563 [hep-th]

Talk Title 非摂動効果を含む位相的弦理論の幾何転移現象
Speaker Yuji Sugimoto (Osaka U.)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1607.01534 [hep-th]

Talk Title ランダム量子スピン系における重なり演算子の一般的性質
Speaker Chigak Itoi (Nihon U., Tokyo)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1404.7178 [math-ph], arXiv:1604.06534 [math-ph]

Talk Title 共変解析力学の基礎とDirac場と結合した重力場への適用
Speaker Satoshi Nakajima (Tsukuba U.)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1510.09048 [gr-qc], arXiv:1602.04849 [gr-qc]

Talk Title Space-time supersymmetry in WZW-like open superstring field theory
Speaker Hiroshi Kunitomo (Kyoto U., Yukawa Inst.)
Time & Location , Room 458
Abstract We discuss the space-time supersymmetry in the WZW-like open superstring field theory, whose complete action was recently constructed. Starting from the supersymmetry transformation in the first quantized formulation, we construct a non-linear transformation so as to keep the complete action is invariant. We also show that the transformation satisfies the supersymmetry algebra to confirm that we can indeed identify it to the space-time supersymmetry. The translation in the algebra is also relized as a non-linear transformation, which is equivalent to the space-time translation at the linearized level. This guarantees the transformations act as expected space-time supersymmetry and translation on the states in the on-shell physical amplitudes.
Reference(s)

Talk Title Pure Spinor超弦理論とAdS$_5$$\times$S${}^5$時空上のDブレーンの解析
Speaker Sota Hanazawa (Ibaraki U., Mito)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1609.05457 [hep-th]

Talk Title Developments of Supersymmetric Gauge Theory by Matrices
Speaker Hiroshi Itoyama (Osaka City U.)
Time & Location , Room 458
Abstract Emergence of matrix models in the determination of low energy effective action in supersymmetric gauge theory is reviewed, highlighting the three stages of developments that took place in the last twenty some years. Concrete examples collected through this long lasting study tell us that the effective prepotential is to be identified as the suitably defined free energy of a matrix model: $\mathcal{F}=F$.
Reference(s) Butsuri 71(9), 607-616, 2016

Talk Title 弱値のベイズ解釈
Speaker Akio Hosoya (Tokyo Inst. Tech.)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1509.07198 [quant-ph]

Talk Title スケール不変性と共形不変性
Speaker Yu Nakayama (Rikkyo U.)
Time & Location , Room 154
Abstract
Reference(s) arXiv:1608.02651 [hep-th]

Talk Title 重力波の初検出とこれから
Speaker Yuta Michimura (Tokyo U.)
Time & Location , Room 458
Abstract
Reference(s)

Talk Title Higher Gauge Theories from Lie n-algebras and Off-Shell Covariantization
Speaker Yukio Kaneko (Tohoku U.)
Time & Location , Room 458
Abstract We analyze higher gauge theories in various dimensions using a supergeometric method based on a differential graded symplectic manifold, called a QP-manifold, which is closely related to the BRST-BV formalism in gauge theories. Extensions of the Lie 2-algebra gauge structure are formulated within the Lie n-algebra induced by the QP-structure. We find that in 5 and 6 dimensions there are special extensions of the gauge algebra. In these cases, a restriction of the gauge symmetry by imposing constraints on the auxiliary gauge fields leads to a covariantized theory. As an example we show that we can obtain an off-shell covariantized higher gauge theory in 5 dimensions, which is similar to the one proposed in arxiv:1206.5643.
Reference(s) arXiv:1606.03861 [hep-th]

Talk Title 量子推定理論による不確定性関係の定式化について
Speaker Yu Watanabe (Kyoto U., Yukawa Inst.)
Time & Location , Room 458
Abstract
Reference(s) Butsuri 71(6), 372-376, 2016

Talk Title Beyond generalized Proca theories
Speaker Ryotaro Kase (Tokyo U. of Sci.)
Time & Location , Room 458
Abstract We consider higher-order derivative interactions beyond second-order generalized Proca theories that propagate only the three desired polarizations of a massive vector field besides the two tensor polarizations from gravity. These new interactions follow the similar construction criteria to those arising in the extension of scalar-tensor Horndeski theories to Gleyzes–Langlois–Piazza–Vernizzi theories. We study the behavior of linear perturbations on top of the homogeneous and isotropic cosmological background in the presence of a matter perfect fluid and find the same number of propagating degrees of freedom as in generalized Proca theories. Moreover, we obtain the conditions for the avoidance of ghosts and Laplacian instabilities of tensor, vector, and scalar perturbations. We observe key differences in the scalar sound speed, which is mixed with the matter sound speed outside the domain of generalized Proca theories.
Reference(s) arXiv:1605.05565 [hep-th]

Talk Title Thermodynamic entropy as a Noether invariant
Speaker Yuki Yokokura (RIKEN, Wako)
Time & Location , Room 458
Abstract We study a classical many-particle system with an external control represented by a time-dependent extensive parameter in a Lagrangian. We show that thermodynamic entropy of the system is uniquely characterized as the Noether invariant associated with a symmetry for an infinitesimal non-uniform time translation $t\to t+\eta\hbar \beta$, where $\eta$ is a small parameter, $\hbar$ is the Planck constant, $\beta$ is the inverse temperature that depends on the energy and control parameter, and trajectories in the phase space are restricted to those consistent with quasi-static processes in thermodynamics.
Reference(s) arXiv:1509.08943 [hep-th]

Talk Title スピンをもつ有質量粒子のツイスター形式
Speaker Satoshi Okano (Nihon U., Tokyo)
Time & Location , Room 458
Abstract
Reference(s)

Talk Title アナログブラックホールで探る非平衡定常状態の物理
Speaker Shin Nakamura (Chuo U., Tokyo)
Time & Location , Room 132
Abstract
Reference(s) arXiv:1309.4089 [hep-th], arXiv:1412.1319 [hep-th], H. Hoshino and S.N. (in preparation)

Talk Title ラプラス演算子の昇降演算子と共形対称性
Speaker Tsuyoshi Houri (Kobe U.)
Time & Location , Room 458
Abstract
Reference(s)

Talk Title Leptogenesis in $E_6 \times U(1)_A$ SUSY GUT model
Speaker Masato Yamanaka (Kyoto Sangyo U.)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1508.06212 [hep-th]

Talk Title Moonshine phenomena in string theory
Speaker Tohru Eguchi (Rikkyo U.)
Time & Location , Room 151
Abstract About five years ago we have found a curious phenomenon in string theory, i.e. appearance of exotic new symmetry M24 acting on the elliptic genus of K3 surface. Similar phenomena have been further discovered with various different symmetry groups and are now called moonshine phenomena. I will give a brief introduction to these phenomena which may play an interesting role in string theory in the future.
Reference(s)

Talk Title Reconciling information loss with quantum dynamics inside black holes
Speaker Sujoy K. Modak (KEK, Tsukuba)
Time & Location , Room 458
Abstract We present a novel proposal to diffuse the so called "information paradox" in black hole evaporation. A model, based on a stochastic modification of quantum dynamics, as provided by the Continuous Spontaneous Localization (CSL) theory, is built, that quantitatively accounts the loss of information in a self-consistent manner.
Reference(s) arXiv:1408.3062 [hep-th], arXiv:1406.4898 [hep-th]

Talk Title 非平衡散逸系における自発的対称性の破れと南部・ゴールドストーンモード
Speaker Yuki Minami (Kyoto U.)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1509.05042 [cond-mat.stat-mech]

Talk Title Gauge Coupling Unification in Gauge-Higgs Grand Unification
Speaker Naoki Yamatsu (Kyoto Sangyo U.)
Time & Location , Room 458
Abstract
Reference(s) arXiv:1512.05559 [hep-ph]