Nonlocal phase-coherent transport via Majorana bound states, so-called teleportation, requires Coulomb blockade to suppress local Andreev reflection. We show that dissipation can replace the need for Coulomb blockade. We study a Kitaev chain coupled to a Markovian bath and identify a regime where the magnitude of nonlocal conductance contribution reach the local one. In this regime, the lowest-energy subspace is maximally mixed, reminiscent of a directly grounded nontrivial topological superconductor. Phase coherence is confirmed by Aharonov-Bohm oscillations. Our results establish dissipation as a tool for controlling quantum teleportation in Majorana systems.

We establish a correspondence between the free-field construction and the minimal-model construction of the Calabi–Yau sector of the four-dimensional heterotic string compactified on Berglund–Hübsch type Calabi–Yau manifolds and their orbifolds. For Fermat-type polynomials the Calabi–Yau vertex operators expressed in terms of free fields are shown to correspond to products of primary fields of ????=2 minimal models. Using this correspondence we verify modular invariance of the free-field construction and extend it to Berglund–Hübsch Calabi–Yau orbifolds, deriving the conditions on complete vertex operators that parallel those of the minimal-model construction [1]. [1] A. Belavin, D. Gepner, G. Makarov, Free-Field Construction of Heterotic String Compactified on Calabi–Yau Orbifolds via Correspondence with N=2 SCFT Minimal Models, Nucl. Phys. B 117668 (2026).

The Berry curvature effect in anomalous transport driven by statistical forces such as the gradient of temperature or chemical potential has been developed by Di Xiao et al in Phys. Rev. Lett. 97, 026603 (2006). This theory operates with spinless fermions. So, the Berry curvature, corresponding magnetic moment of wave packets and the magnetic field dependent density of states originate from the electron orbital degrees of freedom. We present an alternative derivation of the Berry curvature effect on charge, heat and as well on thermalelectric currents in altermagnets and noncentrosymmertric metals where the electron band dispersion possesses spin dependent band splitting.

The band spin splitting in the hexagonal altermagnet CrSb is established using the magnetic group formalism that allows to find the additional spin splitting missed in the frame of the exchange approximation.

Phys.Rev.B 114, 065130 (2026).

Altermagnets are substances with a momentum-dependent spin splitting of electron bands due to a specific crystal structure that is invariant under time reversal only in combination with rotations and reflections. The developed phenomenological approach allows to obtain a spectrum of electron bands in altermagnets corresponding to antiferromagnets with the same symmetry. We consider antiferromagnetic, weak ferromagnetic, and ferrimagnetic structures. The calculated Berry curvature of electron bands in the alterrmarnet with zero spontaneous magnetisation occurs an odd function of momentum whereas it is even in a weak ferromagnetic state. The Berry curvature in ferrimagnetic state is equal to zero.

In this work, we propose an algorithm for constructing orbifolds of Calabi-Yau manifolds of Berglund-Hubsch type. This approach allows us to obtain all mirror pairs for Calabi-Yau manifolds of this type. As an example, we considered one of the Fermat-type models, for which all its orbifolds and their mirror pairs were found, and also for each orbifold the number of generations of quarks and leptons was found, as well as the number of types of particles participating only in gravitational interaction, i.e. dark matter particles.

We discuss the electron dynamics on complex Fermi surfaces in the presence of rather strong magnetic fields. Such electron dynamics can be quite complex, and its most complex regimes are associated with the dynamics of analytic systems on Riemann surfaces. In general, this dynamics is associated with the most complex angular diagrams describing the behavior of conductivity in strong magnetic fields. The detection of such diagrams is of great interest, however, it requires a very careful selection of experimental parameters. Here we discuss the emergence of such diagrams for dispersion relations arising in tight-binding and nearly free electron models in the cubic lattice case.

We consider the Novikov problem, i.e. the problem of describing the global geometry of the level sets of quasiperiodic functions in the plane, for potentials formed by the superposition of periodic potentials that share the same rotational symmetry. For this class of potentials, it is shown that unbounded components of the level sets can exist at only a single energy level; in this respect, such potentials are similar to random potentials in the plane.

Various types of electrohydrodynamic instabilities in liquid crystals (LCs) are a recurring theme in LC research. However, the nonlinear stage of the flexoelectric instability in nematics remains the least studied aspect of this phenomenon. The report will highlight a key advancement in nonlinear physics, providing a compelling example of nonlinear dynamical system behavior. By solving the system of nonlinear equations for a nematic in an alternating external field, we derive from first principles the unique "dancing" behavior of truly two-dimensional patterns above the flexoelectric instability threshold. Our analysis is restricted to liquid crystals with negative dielectric permittivity and electrical conductivity anisotropies. The resulting solution represents a stable limit cycle near above the Hopf bifurcation, valid within the parameters range where the solutions characteristic exponent is complex. The generalized two-dimensional Ginzburg-Landau-like phenomenological theory of the phenomenon is developed. A comprehensive stability analysis of the one-dimensional and two-dimensional solutions of the nonlinear dynamical system for nematics driven by an external alternating electric field of amplitude above the flexoelectric instability threshold is carried out under a change of the control parameters.

1. "Dancing" Two-dimensional Patterns in Nematics above the Flexoelectric Instability Threshold, E.S. Pikina, JETP Letters (2026), DOI: 10.1134/S0021364026608900, Open Access на сайте Pleiades — Springer Nature по решению редколлегии журнала JETP Letters ["Танцующие" двумерные структуры выше порога флексоэлектрической неустойчивости", Е.С.Пикина, Письма в ЖЭТФ, т. 124 (9), 476 (2026), DOI: 10.7868/S3034576626110087].
2. "Pattern formation in nonlinear dynamics of nematic liquid crystals above the flexoelectric instability threshold," E.S. Pikina, A.R. Muratov, E.I. Kats, V.V. Lebedev, Physics of Fluids, vol. 38, Issue 8, 087101 (2026), https://doi.org/10.1063/5.0343775 .