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Low-dimensional physics:

The theoretical basis of nanotechnology

Publications 2005 - 2007


Some publications resulting from collaborations within the network:


Fabrizio Anfuso and Sebastian Eggert

Knight shifts around vacancies in the 2D Heisenberg model

Phys. Rev. Lett. 96, 017204 (2006).

Fabrizio Anfuso and Sebastian Eggert

Interaction effects between impurities in low dimensional spin-1/2 antiferromagnets

Europhys. Lett. 73, 271 (2006).

D. V. Anghel, T. Kuehn, Y. M. Galperin, and M. Manninen,
Interaction of two level systems in amorphous materials with arbitrary phonon fields,
Phys. Rev. B 75, 064202 (2007).

Emil J. Bergholtz and Anders Karlhede, 

"Half-filled Landau level on a thin torus",

cond-mat/0406394, Phys. Rev. Lett. 94, 026802 (2005).   

Emil J. Bergholtz  and Anders Karlhede,

"'One-dimensional' theory of the quantum Hall system",

cond-mat/0509434,  J. Stat. Mech. (2006) L04001. 

E. J. Bergholtz, J.Kailasvuori, E.Wikberg, T.H. Hansson and A. Karlhede,
"The Pfaffian quantum Hall state made simple - multiple vacua and domain  walls on a thin torus",
cond-mat/0604251, Phys. Rev. B 74, 081308(R) (2006). 

Emil J. Bergholtz and Anders Karlhede,

"A simple view on the quantum Hall system",

cond-mat/0611181 (2006).
Accepted as a chapter of the book of the Les Houches school on Quantum Magnetism, to be published by Springer. 

E. J. Bergholtz,  M. Hermanns, T.H.Hansson and A. Karlhede,
"Microscopic theory of the quantum Hall hierarchy",
cond-mat/0702516 (2007). Accepted by Phys. Rev. Lett.

Emil J. Bergholtz and Anders Karlhede. 
"The Quantum Hall system in the Tao-Thouless limit",
To appear soon (2007).

E.J. Bergholtz, T.H. Hansson, M. Hermanns, A. Karlhede, and S. Viefers,
Quantum Hall hierarchy wave functions: From conformal correlators to Tao-Thouless states,
Phys. Rev. B 77, 165325 (2008).

G. Dahl, J.M. Leinaas, J. Myrheim and E. Ovrum:
A tensor product matrix approximation problem in quantum physics
Linear Algebra Appl. {\bf 420}, 711 (2007)

K. Duncan, B. Mehlig, S. Ostlund, M. Wilkinson,
Clustering in mixing flows
Phys. Rev. Lett. 95, 240602 (2005).

Sebastian Eggert,  Olav F. Syljuasen, Fabrizio Anfuso, Markus Andres

Universal alternating order around impurities in antiferromagnets

Phys. Rev. Lett. 99, 097204 (2007); 

Sebastian Eggert and Fabrizio Anfuso

Doping effects in low dimensional antiferromagnets

Physica B 384, 192 (2006).

T.H. Hansson, C.C. Chang, J.K. Jain, and S. Viefers,
Conformal field theory of composite fermions,
Phys. Rev. Lett. 98, 076801 (2007).

T. H. Hansson, C.-C. Chang, J. K. Jain, and S. Viefers
Composite-fermion wave functions as correlators in conformal field theory
Phys. Rev. B 76, 075347 (2007).

T.H. Hansson, M. Hermanns, and S. Viefers,
Quantum Hall quasiparticle operators in conformal field theory,
in preparation.

J. Hauss, A. Fedorov, C. Hutter, A. Shnirman and G. Schön,
Single-qubit lasing and cooling at the Rabi frequency,
 arXiv:cond-mat/0701041

M. Hermanns, J. Soursa, E. J. Bergholtz,  T.H.Hansson and A. Karlhede. 

"Quantum Hall wave functions on the torus", 

To appear soon (2007).

M. Horsdal and J.M. Leinaas:
 Explicit mapping between a 2D quantum Hall system and a 1D Luttinger liquid. I. Luttinger parameters,
Phys. Rev. B (in press); arXiv:cond-mat/0701322.

M. Horsdal and J.M. Leinaas:
Explicit mapping between a 2D quantum Hall system and a 1D Luttinger liquid. II. Correlation functions,
Phys. Rev. B (in press); arXiv:cond-mat/0703496.

Paata Kakashvili and Henrik Johannesson

Boundary Green's Function for Spin-Incoherent Interacting Electrons in 1D

Phys. Rev. B 76, 085128 (2007).

Paata Kakashvili and Henrik Johannesson

Enhanced Two-Channel Kondo Physics in a Quantum Box Device

EPL 79, 47004 (2007). 

Paata Kakashvili, Henrik Johannesson, and Sebastian Eggert

Local Spectral Weight of a Luttinger Liquid: Effects from Edges and Impurities

Phys. Rev. B 74, 085114 (2006).

K. Karkkainen, M. Koskinen, S.M. Reimann, and M. Manninen,
Magnetism in one-dimensional quantum dot arrays,
Phys. Rev. B 72,165324 (2005).

M.N. Korslund and S. Viefers,
Composite-fermion description of rotating Bose gases at low angular momenta,
Phys. Rev. A 73, 063602 (2006)

M. Koskinen, S.M. Reimann, J.-P. Nikkarila, and M. Manninen,
Spectral properties of rotating electrons in quantum dots and their  relation to quantum Hall liquids,
J. Phys.: Condens. Matter 19, 076211 (2007).

S. Kragset, E. Babaev, and A. Sudbø,
"Thermal Fluctuations of Vortex Matter in Trapped Bose-Einstein Condensates",
Phys. Rev. Lett. 97, 170403 (2006).

K. Kärkkäinen, M. Borgh, M. Manninen, and S. M. Reimann,
Magnetism and Hund's rule in an optical lattice with cold fermions,
New J. Phys. 9, 075401 (2007).

T. Kühn, D.V. Anghel, Y.M. Galperin, and M. Manninen,
Interaction of Lamb modes with two-level systems in amorphous nanoscopic membranes,
Phys. Rev. B 76, 165425 (2007). 

E. Langmann:
Conformal field theory and the solution of the (quantum) elliptic Calogero-Sutherland system, 
in: ``Noncommutative Geometry and Representation Theory in Mathematical Physics'', J. Fuchs et. al. (eds),
Contemporary Mathematics 391, American Mathematical Society (2005), 223-240.  arXiv:math-ph/0411081v2 

E. Langmann and M. Wallin,
Mean Field Magnetic Phase Diagrams for the Two Dimensional t-t '-U Hubbard Model,
J. Stat. Phys. (2007) (published online and in print). arXiv:cond-mat/0406608

J.M. Leinaas, J. Myrheim and E. Ovrum:
Extreme points of the set of density matrices with positive partial transpose
Phys. Rev. A (to appear), arXiv:0704.3348.

M. Manninen, S. M. Reimann M. Koskinen, Y. Yu, and M. Toreblad,
Electron-Hole Duality and Vortex Rings in Quantum Dots,
Phys. Rev. Lett. 94, 106405 (2005).

J.-P. Nikkarila and M. Manninen,
Rotating electrons in quantum dots: Classical limit
Solid State Commun. 141, 209 (2007).

J.-P. Nikkarila and M. Manninen,
Localization of particles in harmonic confinement: Effect of the interparticle interaction,
Phys. Rev. A 76, 013622 (2007). 

T. Ojanen and T.T. Heikkilä,
" Photon heat transport in low-dimensional nanostructures",
Phys. Rev. B 76, 073414 (2007).

S.M. Reimann, M. Koskinen, Y. Yu, and M. Manninen,
Rotating quantum liquids crystallize,
New Journal of Physics 8, 59 (2006).

S.M. Reimann, M. Koskinen, Y. Yu, and M. Manninen,
Vortex localization in rotating clouds of bosons and fermions,
Phys. Rev. A 74, 043603 (2006). 

V. Ruuska and M. Manninen,
Composite fermions from the algebraic point of view,
Phys. Rev. B 72, 153309 (2005).

P. Singha Deo, P. Koskinen, and M. Manninen,
Charge fluctuations in coupled systems: the strong coupling regime,
Phys. Rev. B 72, 155332 (2005).

S.O.Skrøvseth and K. Olaussen:
Entanglement used to identify critical systems,
Phys. Rev A 72, 022318 (2005). [cond-mat/0503235]

S.O.Skrøvseth:
Entanglement in bosonic systems,
Phys. Rev A 72, 062305 (2005). [quant-ph/0508160]

S.O.Skrøvseth:
Entanglement properties of quantum spin chains
Phys. Rev. A 74, 022327 (2006) (quant-ph/0602233)

M. Toreblad, Y. Yu, S.M. Reimann, M. Koskinen, and M. Manninen,
Finite boson and fermion systems under extreme rotation: Edge reconstruction and vortex formation,
 J. of Phys. B: Atomic, Molecular & Optical Physics 39, 2721 (2006).

S. Viefers,
Vekselvirkning, samarbeid og læring i teoretisk fysikk,
Invited paper in "Nordisk styrka i forskning",
Nordic Council, 2007.

S. Viefers,
Quantum Hall physics in rotating Bose-Einstein condensates,
Invited review article
J. Phys.: Condensed Matter 20, 123202 (2008).

M. Wilkinson, B. Mehlig, St. Östlund, and K. Duncan,
Unmixing in random flows

Phys. Fluids, in press (2007)

S. Östlund, Hans Hansson and Anders Karlhede
Properties of the spin 3/2 doped Mott insulator near half filling ,
Phys. Rev. B. 71, 165121 (2005)  [cond-mat/0406717 ]

S. Östlund,
Quasiparticles in the Kondo lattice insulator
Conference proceedings SCES'07, to be published in Physica B

S. Östlund,
The strong coupling Kondo lattice model as a Fermi gas,
Phys. Rev. B 76, 153101 (2007).      

 S. Östlund, M. Granath
 Exact transformation for spin-charge separation of spin half fermions without constraints,
 Phys. Rev. Lett 96 066404, (2006).


Updated 12.11.2007 by Susanne Viefers