We develop the theory of quantum scars for quantum fields. By generalizing the formalisms
of Heller and Bogomolny from few-body quantum mechanics to quantum fields, we find that …

We discuss the consequences of the unique symmetry of de Sitter spacetime. This symmetry
leads to the specific thermodynamic properties of the de Sitter vacuum, which produces a …

In the paper “Life, the Universe, and everything—42 fundamental questions,” Roland Allen
and Suzy Lidström presented personal selection of the fundamental questions. Here, based …

Cosmological acceleration is difficult to accommodate in theories of fundamental
interactions involving supergravity and superstrings. An alternative is that the acceleration is …

We discuss a construction of quantum many-body scars in the context of holography. We
consider two-dimensional conformal field theories and use their dynamical symmetries …

A bstract In 2+ 1 dimensions, we propose a renormalizable non-linear sigma model action
which describes the\(\mathcal {N}\)= 2 supersymmetric generalization of Galilean …

The activation temperature T in the de Sitter environment is twice the Gibbons–Hawking
temperature, related to the cosmological horizon. We consider the activation temperature as …

The double Hawking temperature T= 2 TH appears in some approaches to the Hawking
radiation when the radiation is considered in terms of the quantum tunneling. We consider …

We consider the local thermodynamics of the de Sitter state in the gravity. The local
temperature, which is the same for all points of the de Sitter space, is, where H is the Hubble …

We study free particle motion on homogeneous kinematical spacetimes of galilean type. The
three well-known cases of Galilei and (A) dS-Galilei spacetimes are included in our analysis …