SelectedWorks - Boris Svistunov

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Selected Works of Boris Svistunov

Professor, Physics Department

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About Boris Svistunov

Present	Professor, Physics Department, University of Massachusetts Amherst
Institution Organization Position Type Position Title Time Period to Options Current Position Affiliate my profile with this Institution

Physics

Theoretical Condensed Matter Physics

Theoretical Quantum Fluids Solids and gases Group

Hasbrouck Laboratory, Rm 408
University of Massachusetts Amherst
Amherst MA, 01003
Tel:413-545-4428
Fax:413-545-1691

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Comment on "Symmetries and Interaction Coefficients of Kelvin waves" [arXiv ...

Physics Department Faculty Publication Series (2010)

E Kozik and Boris Svistunov

Dynamics of quantized vortex lines in a superfluid feature symmetries associated with the geometric character of the complex-valued field, w(z)=x(z)+iy(z), ...

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Article

Comment on “Direct Mapping of the Finite Tem- perature Phase ...

Physics Department Faculty Publication Series (2010)

L Pollet, N Prokof’ev and B Svistunov

In their Letter, Zhou, Kato, Kawashima, and Trivedi claim that finite-temperature critical points of strongly correlated quantum models emulated by ...

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Article

Critical entropies for magnetic ordering in bosonic mixtures on a ...

Physics Review A (2010)

B Capogrosso-Sansone, S Soyler, N Prokof'ev and B Svistunov

We perform a numeric study (Worm algorithm Monte Carlo simulations) of ultracold two-component bosons in two- and three-dimensional optical lattices. ...

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Article

Criticality in Trapped Atomic Systems

Physics Review Letters (2010)

L Pollet, Nikolai Prokof'ev and Boris Svistunov

We discuss generic limits posed by the trap in atomic systems on the accurate determination of critical parameters for second-order ...

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Article

Diagrammatic Monte Carlo for correlated fermions

EPL (Europhysics Letters) (2010)

E Kozik, K Houcke, E Gull, L. Pollet, et al.

We show that Monte Carlo sampling of the Feynman diagrammatic series (DiagMC) can be used for tackling hard fermionic quantum ...

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Article

Geometric symmetries in superfluid vortex dynamics

Physics Review B (2010)

E Kozik and Boris Svistunov

Dynamics of quantized vortex lines in a superfluid feature symmetries associated with the geometric character of the complex-valued field, w(z)=x(z)+iy(z), ...

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Incorporating Dynamic Mean-Field Theory into Diagrammatic Monte Carlo

Physics Department Faculty Publication Series (2010)

L Pollet, Nikolai Prokof'ev and Boris Svistunov

The bold diagrammatic Monte Carlo (BDMC) method performs an unbiased sampling of Feyn- man's diagrammatic series using skeleton diagrams. For ...

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Article

Regularization of Diagrammatic Series with Zero Convergence Radius

Physics Review Letters (2010)

L Pollet, Nikolai Prokof'ev and Boris Svistunov

The divergence of perturbative expansions which occurs for the vast majority of macroscopic systems and follows from Dyson’s collapse argument ...

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Article

Suppression of the critical temperature for superfluidity near the Mott ...

Nature Physics (2010)

S Trotzky, L Pollet, F Gerbier, U Schnorrberger, et al.

Ultracold atomic gases in optical lattices have proven to be a controllable, tunable and clean implementation of strongly interacting quantum ...

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The 17/5 spectrum of the Kelvin-wave cascade

Physics Department Faculty Publication Series (2010)

E Kozik and Boris Svistunov

Direct numeric simulation of the Biot-Savart equation readily resolves the 17/5 spectrum of the Kelvin-wave cascade from the 11/3 spectrum ...

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Article

The Beliaev technique for a weakly interacting Bose gas

New Journal of Physics (2010)

B Capogrosso-Sansone, S Giorgini, S Pilati, L. Pollet, et al.

Aiming at simplicity of explicit equations and, at the same time, controllable accuracy of the theory, we present our results ...

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Worm Algorithm for Problems of Quantum and Classical Statistics

Physics Department Faculty Publication Series (2010)

Nikolai Prokof'ev and Boris Svistunov

This is a chapter of the multi-author book “Understanding Quantum Phase Transitions,” edited by Lincoln Carr and published by Taylor ...

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Article

Absence of a Direct Superfluid to Mott Insulator Transition in ...

Physics Review Letters (2009)

L Pollet, N Prokof'ev, B Svistunov and Troyer

We prove the absence of a direct quantum phase transition between a superfluid and a Mott insulator in a bosonic ...

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Article

Phase diagram of the disordered Bose-Hubbard model

Physics Review B (2009)

V Gurarie, L Pollet, Nikolai Prokof'ev, Boris Svistunov, et al.

We establish the phase diagram of the disordered three-dimensional Bose-Hubbard model at unity filling which has been controversial for many ...

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Article

Sign-alternating interaction mediated by strongly correlated lattice bosons

New Journal of Physics (2009)

S Söyler, B Capogrosso-Sansone, Nikolai Prokof'ev and Boris Svistunov

We reveal a generic mechanism of generating sign-alternating intersite interactions mediated by strongly correlated lattice bosons. The ground-state phase diagram ...

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Article

Underlying Mechanism for the Giant Isochoric Compressibility of Solid 4He ...

Physics Review Letters (2009)

S Söyler, A Kuklov, L Pollet, Nikolai Prokof'ev, et al.

In the experiment on superfluid transport in solid 4He [Phys. Rev. Lett. 100, 235301 (2008)], Ray and Hallock observed an ...

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Article

Bold diagrammatic Monte Carlo: A generic sign-problem tolerant technique for ...

Physics Review B (2008)

N Prokof'ev and B Svistunov

We develop a Monte Carlo scheme for sampling series of Feynman diagrams for the proper self-energy, which are self-consistently expressed ...

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Other

Comment on ``Comparative study of Higgs transition in one-component and ...

Physics Department Faculty Publication Series (2008)

A Kuklov, M Matsumoto, N Prokof'ev, B Svistunov, et al.

We comment on the claim of continuous phase transition in the SU(2) symmetric Deconfined Critical Point action made by O.Motrunich ...

Article

Critical Temperature Curve in BEC-BCS Crossover

Physics Review Letters (2008)

E Burovski, E Kozik, N Prokof'ev, B Svistunov, et al.

The strongly correlated regime of the crossover from Bardeen-Cooper-Schrieffer pairing to Bose-Einstein condensation can be realized by diluting a system ...

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Other

Diagrammatic Monte Carlo

Physics Department Faculty Publication Series (2008)

K Houcke, E Kozik, Nikolai Prokof'ev and Boris Svistunov

Diagrammatic Monte Carlo (DiagMC) is a numeric technique that allows one to calculate quantities specified in terms of diagrammatic expansions, ...

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Article

Expansion of a Quantum Gas Released from an Optical Lattice

Physics Review Letters (2008)

F Gerbier, S Trotzky, S Fölling, U Schnorrberger, et al.

We analyze the interference pattern produced by ultracold atoms released from an optical lattice, commonly interpreted as the momentum distributions ...

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Article

Fermi-polaron problem: Diagrammatic Monte Carlo method for divergent sign-alternating series

Physics Review B (2008)

Nikolai Prokof'ev and Boris Svistunov

We use the diagrammatic Monte Carlo approach to solve the problem of a single spin-down fermion resonantly interacting with a ...

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Article

Kolmogorov and Kelvin-wave cascades of superfluid turbulence at T=0 ...

Physics Review B (2008)

E Kozik and Boris Svistunov

As long as vorticity quantization remains irrelevant for long-wave physics, superfluid turbulence supports a regime macroscopically identical to the Kolmogorov ...

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Article

Local Stress and Superfluid Properties of Solid 4He

Physics Review Letters (2008)

L Pollet, M Boninsegni, A Kuklov, Nikolai Prokof'ev, et al.

We provide a semiquantitative tool, derived from first-principles simulations, for answering the question of whether certain types of defects in ...

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Article

Monte Carlo study of the two-dimensional Bose-Hubbard model

Physics Review A (2008)

B Capogrosso-Sansone, S Söyler, Nikolai Prokof'ev and Boris Svistunov

One of the most promising applications of ultracold gases in optical lattices is the possibility to use them as quantum ...

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