Kekule-distortion-induced Exciton instability in graphene

Effects of a Kekule distortion on exciton instability in single-layer graphene are discussed. In the framework of quantum electrodynamics the mass of the electron generated dynamically is worked out using a Schwinger-Dyson equation. For homogeneous lattice distortion it is shown that the generated mass is independent of the amplitude of the lattice distortion at the one-loop approximation. Formation of excitons induced by the homogeneous Kekule distortion could appear only through direct dependence of the lattice distortion.Comment: 6 pages, 1 figur

Alien Registration- Michaud, Raoul S. (Madawaska, Aroostook County)

https://digitalmaine.com/alien_docs/35414/thumbnail.jp

EDUCATION AND FREEDOM IN FREDERICK DOUGLASS'S THE NARRATIVE OF THELIFE OF FREDERICK DOUGLASS, AN AMERICAN SLAVE

The inalienable rights related to life, liberty and pursuit of happiness highly advocated by the American Declaration of Independence fail to bring hopes to fruition. They prove restricted in their implementation due to circumstances dictated by race and the institution of slavery. Blacks of every age suffer extremist hardships which deprive them from the key to success: education. Frederick Douglass, a fugitive slave and fiercely dedicated to abolitionist principles and goals reveals in his book The Narrative of the Life of Frederick Douglass, An American Slave, his heroic journey from slavery to freedom while experiencing education as a sine qua non condition. In light of this, the present paper quests racism as an American social plague and demonstrates how education saves African-Americans from the yoke of a certain,dehumanization

Memory erasure in small systems

We consider an overdamped nanoparticle in a driven double-well potential as a generic model of an erasable one-bit memory. We study in detail the statistics of the heat dissipated during an erasure process and show that full erasure may be achieved by dissipating less heat than the Landauer bound. We quantify the occurrence of such events and propose a single-particle experiment to verify our predictions. Our results show that Landauer's principle has to be generalized at the nanoscale to accommodate heat fluctuations.Comment: 4 pages, 4 figure

The third parafermionic chiral algebra with the symmetry Z_{3}

We have constructed the parafermionic chiral algebra with the principal parafermionic fields \Psi,\Psi^{+} having the conformal dimension \Delta_{\Psi}=8/3 and realizing the symmetry Z_{3}.Comment: 6 pages, no figur

Reaction kinetics on clusters and islands

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/70583/2/JCPSA6-85-11-6804-1.pd

Parafermionic theory with the symmetry Z_N, for N even

Following our previous papers (hep-th/0212158 and hep-th/0303126) we complete the construction of the parafermionic theory with the symmetry Z_N based on the second solution of Fateev-Zamolodchikov for the corresponding parafermionic chiral algebra. In the present paper we construct the Z_N parafermionic theory for N even. Primary operators are classified according to their transformation properties under the dihedral group (Z_N x Z_2, where Z_2 stands for the Z_N charge conjugation), as two singlets, doublet 1,2,...,N/2-1, and a disorder operator. In an assumed Coulomb gas scenario, the corresponding vertex operators are accommodated by the Kac table based on the weight lattice of the Lie algebra D_{N/2}. The unitary theories are representations of the coset SO_n(N) x SO_2(N) / SO_{n+2}(N), with n=1,2,.... We suggest that physically they realise the series of multicritical points in statistical systems having a Z_N symmetry