activity
20002026
most citedThe critical Casimir force and its fluctuations in lattice spin models: exact and Monte Carlo results

75 citations · 528 across the 35 of their papers we have counts for

collaborators

36 papers

cond-mat.stat-mech2026

Casimir Force, Magnetization, and Susceptibility for \\ Ising Chain with an Impurity Atom in the Presence of an External Field

Daniel Dantchev

The article contains exact results for the behavior of the Casimir force of Ising chain of atoms containing an impurity atom. The force is considered as a function of and o…

cond-mat.stat-mech2026

Casimir versus Helmholtz forces in the Gaussian model: exact results for Dirichlet--Dirichlet, Neumann--Dirichlet, Neumann--Neumann, and periodic boundary conditions

Daniel Dantchev, Joseph Rudnick

We present results and compare the behavior of two fluctuation-induced forces pertinent for their corresponding ensembles: the critical Casimir force in the grand canonical (fixed…

cond-mat.stat-mech2025

Casimir versus Helmholtz fluctuation induced force in { the Nagle}-Kardar model: Exact results

Daniel Dantchev, Nicholay S. Tonchev, Joseph Rudnick

When used to describe \textit{finite} systems the {conjugate} statistical-mechanical ensembles are \textit{not} equivalent. This has physical implications for the behavior of the f…

cond-mat.stat-mech2024★ 4 cited

Finite-size Nagle-Kardar model: Casimir force

Daniel Dantchev, Nicholay Tonchev, Joseph Rudnick

We derive exact results for the critical Casimir force (CCF) within the Nagle-Kardar model with periodic boundary conditions (PBC's). The model represents one-dimensional Ising cha…

cond-mat.stat-mech2024★ 3 cited

A Brief Survey of Fluctuation-induced Interactions in Micro- and Nano-systems and One Exactly Solvable Model as Example

Daniel Dantchev, Nicholay Tonchev

Fluctuations exist in any material object . If has non-zero temperature , one speaks about thermal fluctuations. If is at very low , the fluctuations are of quantu…

cond-mat.stat-mech2024★ 9 cited

Casimir and Helmholtz forces in one-dimensional Ising model with Dirichlet (free) boundary conditions

D. M. Dantchev, N. S. Tonchev, J. Rudnick

Attention in the literature has increasingly turned to the issue of the dependence on ensemble and boundary conditions of fluctuation-induced forces. We have recently investigated…