[68] 
A. W. Sandvik and R. Moessner,
Correlations and confinement in nonplanar twodimensional dimer models,
Phys. Rev. B 73, 144504 (2006).

[67] 
E. V. Castro, N. M. R. Peres, K. S. D. Beach, and A. W. Sandvik,
Site dilution of quantum spins in the honeycomb lattice,
Phys. Rev. B 73, 054422 (2006).

[66] 
L. Wang, K. S. D. Beach, and A. W. Sandvik,
Highprecision finitesize scaling analysis of the quantumcritical
point of S=1/2 Heisenberg antiferromagnetic bilayers,
Phys. Rev. B 73, 014431 (2006).

[65] 
A. W. Sandvik,
Ground State Projection of Quantum Spin Systems in the
ValenceBond Basis,
Phys. Rev. Lett 95, 207203 (2005).

[64] 
R. G. Melko and A. W. Sandvik,
Stochastic series expansion algorithm for the S=1/2 XY model with foursite
ring exchange,
Phys. Rev. E 72, 026702 (2005).

[63] 
P. B. Chakraborty, P. Henelius, H. Kjonsberg, A. W. Sandvik, and
S. M. Girvin,
Theory of the magnetic phase diagram of LiHoF_{4},
Phys. Rev. B 70, 144411 (2004).

[62] 
N. Laflorencie, H. Rieger, A. W. Sandvik, and P. Henelius,
Crossover effects in the randomexchange spin1/2 antiferromagnetic
chain, Phys. Rev. B 70, 054430 (2004).

[61] 
K. H. Höglund and A. W. Sandvik,
Impurity effects at finite temperature in the twodimensional S = 1/2
Heisenberg antiferromagnet, Phys. Rev. B 70, 024406 (2004).

[60] 
A. W. Sandvik, L. Balents, and D. K. Campbell,
Ground State Phases of the HalfFilled OneDimensional Extended Hubbard
Model, Phys. Rev. Lett. 92, 236401 (2004).

[59] 
N. Laflorencie, D. Poilblanc, and A. W. Sandvik,
Magnetic ordering in a doped frustrated spinPeierls system,
Phys. Rev. B 69, 212412 (2004).

[58] 
A. W. Sandvik, D. J. Scalapino, and N. E. Bickers,
Effect of an electronphonon interaction on the oneelectron spectral
weight of a dwave superconductor, Phys. Rev. B 69, 094523 (2004).

[57] 
R. G. Melko, A. W. Sandvik, and D. J. Scalapino,
Twodimensional quantum XY model with ring exchange and external field,
Phys. Rev. B 69, 100408 (2004).

[56] 
R. G. Melko, A. W. Sandvik, and D. J. Scalapino,
Aspectratio dependence of the spin stiffness of a twodimensional XY
model, Phys. Rev. B 69, 014509 (2004).

[55] 
A. W. Sandvik,
Stochastic series expansion method for quantum Ising models with
arbitrary interactions, Phys. Rev. E 68, 056701 (2003).

[54] 
P. Sengupta, A. W. Sandvik, and R. R. P. Singh,
Specific heat of quasitwodimensional antiferromagnetic Heisenberg
models with varying interplanar couplings, Phys. Rev. B 68, 094423 (2003).

[53] 
A. W. Sandvik, P. Sengupta, and D. K. Campbell,
Comment on ``GroundState Phase Diagram of a HalfFilled OneDimensional
Extended Hubbard Model'', Phys. Rev. Lett. 91, 089701 (2003).

[52] 
Kaj H. Höglund and Anders W. Sandvik,
Susceptibility of the 2D Spin(1/2) Heisenberg Antiferromagnet with an
Impurity, Phys. Rev. Lett. 91, 077204 (2003).

[51] 
P. Sengupta, A. W. Sandvik, and D. K. Campbell,
Peierls transition in the presence of finitefrequency phonons in the
onedimensional extended PeierlsHubbard model at halffilling,
Phys. Rev. B 67, 245103 (2003).

[50] 
A. W. Sandvik, S. Daul, R. R. P. Singh, and D. J. Scalapino,
Striped phase in a quantum XYmodel with ring exchange ,
Phys. Rev. Lett. 89, 247201 (2002).

[49] 
A. W. Sandvik,
Multicritical point in a diluted bilayer Heisenberg
quantum antiferromagnet , Phys. Rev. Lett. 89, 177201 (2002).

[48] 
O. F. Syljuåsen and A. W. Sandvik, Quantum Monte Carlo with
Directed Loops , Phys. Rev. E 66, 046701 (2002).

[47] 
T. M. R. Byrnes, R. J. Bursill, H.P. Eckle, C. J. Hamer, and A. W. Sandvik,
Persistent Currents in the Heisenberg chain with a weak link,
Phys. Rev. B 66, 195313 (2002).

[46] 
A. W. Sandvik,
Classical percolation transition in the diluted twodimensional S=1/2
Heisenberg antiferromagnet, Phys. Rev. B 66, 024418 (2002).

[45] 
P. Sengupta, A. W. Sandvik, and D. K. Campbell,
Bondorderwave phase and quantum phase transitions in the
onedimensional extended Hubbard model, Phys. Rev. B 65,
155113 (2002).

[44] 
A. W. Sandvik, Comment on "Quantum phase transition of the randomly
diluted Heisenberg antiferromagnet on a square lattice", Phys. Rev. Lett.
86, 3209 (2001).

[43] 
A. W. Sandvik and R. R. P. Singh, Highenergy magnon dispersion and
multimagnon continuum in the twodimensional Heisenberg antiferromagnet,
Phys. Rev. Lett. 86, 528 (2001).

[42] 
P. Henelius and A. W. Sandvik,
The sign problem in Monte Carlo simulations of frustrated quantum
spin systems, Phys. Rev. B 62, 1102 (2000).

[41] 
Y. Song, H. Q. Lin, and A. W. Sandvik,
Green's function theory of the twodimensional antiferromagnetic
Heisenberg model with local magnetic impurities, J. Phys. Cond. Mat.
12, 5275 (2000).

[40] 
P. V. Shevchenko, A. W. Sandvik, and O. P. Sushkov,
Doublelayer Heisenberg antiferromagnet at finite temperature:
Brueckner theory and quantum Monte Carlo simulations,
Phys. Rev. B 61, 3475 (2000).

[39] 
P. Henelius, A. W. Sandvik, C. Timm, and S. M. Girvin,
Monte Carlo study of a twodimensional quantum ferromagnet,
Phys. Rev. B 61, 364 (2000).

[38] 
A. W. Sandvik,
Multichain meanfield theory of quasionedimensional quantum spin
systems, Phys. Rev. Lett. 83, 3069 (1999).

[37] 
A. W. Sandvik and C. J. Hamer,
Ground state parameters, finitesize scaling, and lowtemperature
behavior of the twodimensional S=1/2 XY model,
Phys. Rev. B 60, 6588 (1999).

[36] 
A. W. Sandvik and D. K. Campbell, SpinPeierls transition in
the Heisenberg chain with finitefrequency phonons,
Phys. Rev. Lett. 83, 195 (1999).

[35] 
A. W. Sandvik,
Stochastic series expansion method with operatorloop update,
Phys. Rev. B 59, R14157 (1999).

[34] 
A. W. Sandvik,
Comment on "Evidence for nontrivial groundstate structure of 3d +/ J
spin glasses", Europhys. Lett. 45, 745 (1999).

[33] 
R. T. Clay, A. W. Sandvik, and D. K. Campbell,
Possible exotic phases in the onedimensional extended Hubbard
model, Phys. Rev. B 59, 4665 (1999).

[32] 
C. Timm, S. M. Girvin, P. Henelius, and A. W. Sandvik,
1/N expansion for twodimensional quantum ferromagnets,
Phys. Rev. B 58, 1464 (1998).

[31] 
A. W. Sandvik,
Critical temperature and the transition from quantum to classical
order parameter fluctuations in the threedimensional Heisenberg
antiferromagnet,
Phys. Rev. Lett. 80, 5196 (1998).

[30] 
P. Henelius, S. M. Girvin, and A. W. Sandvik,
Role of winding numbers in quantum Monte Carlo simulations,
Phys. Rev. B 57, 13382 (1998).

[29] 
A. W. Sandvik,
Stochastic method for analytic continuation of quantum Monte Carlo data,
Phys. Rev. B 57, 10287 (1998).

[28] 
A. W. Sandvik, S. Capponi, D. Poilblanc, and E. Dagotto,
Numerical calculations of the B1g Raman spectrum of the
twodimensional Heisenberg model,
Phys. Rev B 57, 8478 (1998).

[27] 
A. W. Sandvik, R. R. P. Singh, and D. K. Campbell
Quantum Monte Carlo in the interaction representation  Application
to a spinPeierls model,
Phys. Rev. B 56, 14510 (1997)

[26] 
M. Takigawa, O. A. Starykh, A. W. Sandvik, and R. R. P. Singh,
Nuclear relaxation in the spin1/2 antiferromagnetic chain
compound Sr_{2}CuO_{3}  Comparison between theories
and experiments,
Phys. Rev. B 56, 13681 (1997).

[25] 
A. W. Sandvik, E. Dagotto, and D. J. Scalapino,
Nonmagnetic impurities in spingapped and gapless Heisenberg
antiferromagnets,
Phys. Rev. B 56, 11701 (1997).

[24] 
A. W. Sandvik,
Finitesize scaling of the ground state parameters of the
twodimensional Heisenberg model,
Phys. Rev. B 56, 11678 (1997).

[23] 
O. A. Starykh, A. W. Sandvik, and R. R. P. Singh,
Dynamics of the spinhalf Heisenberg chain at intermediate
temperatures,
Phys. Rev. B 55, 14953 (1997).

[22] 
O. A. Starykh, R. R. P. Singh, and A. W. Sandvik,
Quantumcritical scaling and temperaturedependent logarithmic
corrections in the spinhalf Heisenberg chain,
Phys. Rev. Lett. 78, 539 (1997).

[21] 
A. W. Sandvik and A. Sudbö,
Superconductivity and spin gap in the highdoping regime of a
CuO chain model,
Europhys. Lett. 36, 443 (1996).

[20] 
A. W. Sandvik,
Error reduction using covariance in quantum Monte Carlo simulations,
Phys. Rev. B 54, 14910 (1996).

[19] 
A. W. Sandvik and A. Sudbö,
Phase separation and the existence of superconductivity in a
onedimensional copperoxygen model,
Phys. Rev. B 54, R3746 (1996).

[18] 
E. Dagotto, J. Riera, A. Sandvik, and A. Moreo,
Spin dynamics of hole doped
Y_{2x}Ca_{x}BaNiO_{5} ,
Phys. Rev. Lett. 76, 1731 (1996).

[17] 
A. W. Sandvik, E. Dagotto, and D. J. Scalapino,
Spin dynamics of SrCu_{2}O_{3}
and the Heisenberg ladder,
Phys. Rev. B 53, R2934 (1996).

[16] 
A. W. Sandvik and D. J. Scalapino,
Effects of intrabilayer coupling on the magnetic properties of
YBa_{2}Cu_{3}O_{6},
Phys. Rev. B 53, R526 (1996).

[15] 
A. W. Sandvik,
NMR relaxation rates for the spin1/2 Heisenberg chain,
Phys. Rev. B 52, R9831 (1995).

[14] 
F. Nori, R. Merlin, S. Haas, A. W. Sandvik, and E. Dagotto,
Magnetic Raman scattering in twodimensional spin1/2 Heisenberg
antiferromagnets: Spectral shape anomaly and magnetostrictive effects,
Phys. Rev. Lett. 75, 553 (1995).

[13] 
A. W. Sandvik, A. V. Chubukov, and S. Sachdev,
Quantum critical behavior in a twolayer antiferromagnet,
Phys. Rev. B 51, 16483 (1995).

[12] 
A. Moreo, S. Haas, A. W. Sandvik, and E. Dagotto,
Quasiparticle dispersion of the tJ and Hubbard models,
Phys. Rev. B 51, 12045 (1995).

[11] 
A. W. Sandvik and D. J. Scalapino,
Spin dynamics of La_{2}CuO_{4}
and the twodimensional Heisenberg model,
Phys. Rev. B 51, 9403 (1995).

[10] 
A. W. Sandvik and M. Vekic,
Disorder induced phase transition in a twodimensi\onal
quantum antiferromagnet,
Phys. Rev. Lett. 74, 1226 (1995).

[9] 
A. W. Sandvik,
Numerical study of a twodimensional quantum antiferromagnet with
random ferromagnetic bonds,
Phys. Rev. B 50, 15803 (1994).

[8] 
A. W. Sandvik, D. J. Scalapino, and P. Henelius,
Quantum Monte Carlo study of the onedimensional Hubbard model
with random hopping and random potentials,
Phys. Rev. B 50, 10474 (1994).

[7] 
A. W. Sandvik and D. J. Scalapino,
Orderdisorder transition in a twolayer quantum antiferromagnet,
Phys. Rev. Lett. 72, 2777 (1994).

[6] 
A. W. Sandvik, D. J. Scalapino, and C. Singh,
Quantum Monte Carlo study of spin correlations in the onedimensional
Hubbard model,
Phys. Rev. B 48, 2112 (1993).

[5] 
A. W. Sandvik and D. J. Scalapino,
Correlation functions in periodic chains,
Phys. Rev. B 47, 12333 (1993).

[4] 
A. W. Sandvik and D. J. Scalapino,
Effects of weak random disorder in the onedimensional Hubbard model,
Phys. Rev. B 47, 10090 (1993).

[3] 
A. W. Sandvik,
A generalization of Handscomb's quantum Monte Carlo scheme 
Application to the 1D Hubbard model,
J. Phys. A 25, 3667 (1992).

[2] 
A. W. Sandvik and J. Kurkijärvi,
Quantum Monte Carlo simulation method for spin systems,
Phys. Rev. B 43, 5950 (1991).

[1] 
with V. Chaubaud et al.,
Beam test results from a prototype for the Delphi microvertex detector,
Nucl. Instrum. and Meth. A 292, 75 (1990).
