Long range Casimir force induced by transverse electromagnetic modes

Force-induced unzipping of DNA with long-range correlated sequence

We consider force-induced unzipping transition for a heterogeneous DNA model with a long-range correlated base-sequence. It is shown that as compared to the uncorrelated situation, long-range correlations smear the unzipping phase-transition, change its universality class and lead to non-self-averaging: the averaged behavior strongly differs from the typical ones. Several basic scenarios for th...

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Long-range magnetic interaction due to the Casimir effect.

The zero-point quantum fluctuations of the electromagnetic field in vacuum are known to give rise to a long-range attractive force between metal plates (Casimir effect). For ferromagnetic layers separated by vacuum, it is shown that the interplay of the Casimir effect and of the magneto-optical Kerr effect gives rise to a long-range magnetic interaction. The Casimir magnetic force is found to d...

Casimir amplitudes in a quantum model with long-range interaction

Abstract. A d-dimensional quantum model system confined to a general hypercubical geometry with linear spatial size L and “temporal size” 1/T ( T temperature of the system) is considered in the spherical approximation under periodic boundary conditions. For a film geometry in different space dimensions 1 2 σ < d < 3 2 σ , where 0 < σ ≤ 2 is a parameter controlling the decay of the long-range in...

Casimir force changes sign.

that the quantum fluctuations of an electromagnetic field, so-called zero-point fluctuations, give rise to an attractive force between objects 1. This force is a particularly striking consequence of the quantum theory of electrodynamics (for a review, see ref. 2). Casimir's calculations were idealized — he considered two perfectly conducting parallel plates at absolute-zero temperature — but th...