10 citations · 17 across the 9 of their papers we have counts for
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Boundary criticality in the Gross-Neveu-Yukawa model at higher orders
Oleksandr Diatlyk, Simone Giombi, Zimo Sun
We extend the study of boundary criticality in the Gross-Neveu-Yukawa universality class beyond leading order. Using the hyperbolic space formulation of boundary conformal field th…
Extraordinary Surface Criticalities for Interacting Fermions
Oleksandr Diatlyk, Zimo Sun, Yifan Wang
Interacting fermions exhibit a rich landscape of surface defects and associated critical phenomena. We investigate novel surface critical behavior in the three-dimensional Gross-Ne…
-symmetric Field Theories at Finite Temperature
Oleksandr Diatlyk, Andrei Katsevich, Fedor K. Popov
We investigate the thermal properties of -symmetric scalar field theories with purely imaginary couplings. The free energy governs the asymptotic density of states, p…
Surprises in the Ordinary: Invariant Surface Defect in the -expansion
Oleksandr Diatlyk, Zimo Sun, Yifan Wang
We study an invariant surface defect in the Wilson-Fisher conformal field theory (CFT) in dimensions. This defect is defined by mass deformation on a two-dimensional…
Effective Field Theory of Conformal Boundaries
Oleksandr Diatlyk, Himanshu Khanchandani, Fedor K. Popov +1
We introduce an effective field theory (EFT) for conformal impurity by considering a pair of transversely displaced impurities and integrating out modes with mass inversely proport…
Defect Fusion and Casimir Energy in Higher Dimensions
Oleksandr Diatlyk, Himanshu Khanchandani, Fedor K. Popov +1
We study the operator algebra of extended conformal defects in more than two spacetime dimensions. Such algebra structure encodes the combined effect of multiple impurities on phys…
Gauging Non-Invertible Symmetries: Topological Interfaces and Generalized Orbifold Groupoid in 2d QFT
Oleksandr Diatlyk, Conghuan Luo, Yifan Wang +1
Gauging is a powerful operation on symmetries in quantum field theory (QFT), as it connects distinct theories and also reveals hidden structures in a given theory. We initiate a sy…
Beyond in Large Conformal Vector Models at Finite Temperature
Oleksandr Diatlyk, Fedor K. Popov, Yifan Wang
We investigate finite-temperature observables in three-dimensional large critical vector models taking into account the effects suppressed by . Such subleading contri…
Massive quantum scalar field theory in the presence of moving mirrors
Lev Astrakhantsev, Oleksandr Diatlyk
We study the 2D massive fields in the presence of moving mirrors. We do that for standing mirror and mirror moving with constant velocity. We calculate the modes and commutation re…