Brand Group - Publications and Preprints

2023

1. Distributed vorticity model for vortex molecule dynamics
   S. Choudhury, J. Brand, Phys. Rev. A 107, 053314 (2023) [arXiv]


2. Andreev bound states at boundaries of polarized 2D Fermi superfluids with s-wave pairing and spin-orbit coupling
   K. Thompson, J. Brand, U. Zülicke, SciPost Physics 14, 115 (2023) [arXiv]


3. Magnetic impurity in a one-dimensional few-fermion system
   L. Rammelmüller, D. Huber, M. Čufar, J. Brand, H.-W. Hammer, A. G. Volosniev, SciPost Physics 14, 006 (2023) [arXiv]

2022

1. Triplet character of 2D-fermion dimers arising from s-wave attraction via spin-orbit coupling and Zeeman splitting
   U. Ebling, U. Zülicke, J. Brand, SciPost Physics 12, 167 (2022) [arXiv]


2. Rotational pendulum dynamics of a vortex molecule in a channel geometry
   S. Choudhury, J. Brand, Phys. Rev. A 106, 043319 (2022) [arXiv]


3. Stochastic differential equation approach to understanding the population control bias in full configuration interaction quantum Monte Carlo
   J. Brand, M. Yang, E. Pahl, Phys. Rev. B 105, 235144 (2022) [arXiv]


4. Polaron-Depleton Transition in the Yrast Excitations of a One-Dimensional Bose Gas with a Mobile Impurity
   M. Yang, M. Čufar, E. Pahl, J. Brand, Condens. Matter 7, 15 (2022) [arXiv]


5. Erratum: Coexistence of topological and nontopological Fermi-superfluid phases [Phys. Rev. Research 3, 043201 (2021)]
   K. Thompson, U. Zülicke, J. Brand, Phys. Rev. Research 4, 049001 (2022)

2021

1. Coexistence of topological and nontopological Fermi-superfluid phases
   K. Thompson, U. Zülicke, J. Brand, Phys. Rev. Research 3, 043201 (2021) [arXiv]


2. Signatures of the BCS-BEC crossover in the yrast spectra of Fermi quantum rings
   U. Ebling, A. Alavi, J. Brand, Phys. Rev. Research 3, 023142 (2021) [arXiv]

2020

1. Direct Measurements of Collisional Dynamics in Cold Atom Triads
   L. A. Reynolds, E. Schwartz, U. Ebling, M. Weyland, J. Brand, M. F. Andersen Phys. Rev. Lett. 124, 073401 (2020) [arXiv], Synposis in APS Physics: Watching Three Atoms Collide


2. Improved walker population control for full configuration interaction quantum Monte Carlo
   M. Yang, E. Pahl, J. Brand J. Chem. Phys. 153, 174103 (2020) [arXiv]


3. Eliminating the wave-function singularity for ultracold atoms by a similarity transformation
   P. Jeszenszki, U. Ebling, H. Luo, A. Alavi, J. Brand, Phys. Rev. Research 2, 043270 (2020) [arXiv]


4. Chiral two-dimensional p-wave superfluid from s-wave pairing in the Bose-Einstein-condensate regime
   K. Thompson, J. Brand, U. Zülicke, Phys. Rev. A 101, 013613 (2020) [arXiv]

2019

1. Quantum dark solitons in the one-dimensional Bose gas
   S. S. Shamailov, J. Brand, Phys. Rev. A 99, 043632 (2019) [arXiv]


2. Nonlinear waves of Bose-Einstein condensates in rotating ring-lattice potentials
   A. Muñoz Mateo, V. Delgado, M. Guilleumas, R. Mayol, J. Brand, Phys. Rev. A 99, 023630 (2019) [arXiv]


3. Are smooth pseudopotentials a good choice for representing short-range interactions?
   P. Jeszenszki, A. Alavi, J. Brand, Phys. Rev. A 99, 033608 (2019) [arXiv]

2018

1. Nonlinear standing waves in an array of coherently coupled Bose-Einstein condensates
   Ch. Baals, H. Ott, J. Brand, A. Muñoz Mateo, Phys. Rev. A 98, 053603 (2018) Editor's suggestion [arXiv]


2. Accelerating the convergence of exact diagonalization with the transcorrelated method: Quantum gas in one dimension with contact interactions
   P. Jeszenszki, H. Luo, A. Alavi, J. Brand, Phys. Rev. A 98, 053627 (2018) [arXiv]


3. Accurate projective two-band description of topological superfluidity in spin-orbit-coupled Fermi gases
   J. Brand, L. Toikka, U. Zülicke, Sci. Post Phys. 5, 016 (2018) [arXiv]


4. s-wave scattering length of a Gaussian potential
   P. Jeszinszki, A. Yu. Cherny, J. Brand, Phys. Rev. A 97, 042708 (2018) [arXiv]


5. Quasiparticles of widely tuneable inertial mass: The dispersion relation of atomic Josephson vortices and related solitary waves
   S. S. Shamailov, J. Brand, Sci. Post Phys. 4, 018 (2018) [arXiv]


6. Landau instability and mobility edges of the interacting one-dimensional Bose gas in weak random potentials
   A. Cherny, J.-S. Caux, J. Brand, J. Phys. B 51, 015301 (2018) [arXiv]

2017

1. Hidden long-range order in a two-dimensional spin-orbit coupled Bose gas
   S.-W. Su, I-K. Liu, S.-C. Guo, R. Liao, O. Fialko, and J. Brand, Phys. Rev. A 95, 053629 (2017) [arXiv]


2. Exactly solvable model for a solitonic vortex in a compressible superfluid
   L. Toikka, J. Brand, New J. Phys. 19, 023029 (2017) [arXiv]


3. The universe on a table top: engineering quantum decay of a relativistic scalar field from a metastable vacuum
   O. Fialko, B. Opanchuk, A. I. Sidorov, P. D. Drummond, J. Brand, J. Phys. B 50, 024003 (2017) [arXiv]


4. The single-particle density matrix of a quantum bright soliton from the coordinate Bethe ansatz
   A. Ayet and J. Brand, J. Stat. Mech. 2017, 023103 (2017) [arXiv]

2016

1. Traveling Majorana Solitons in a Low-Dimensional Spin-Orbit-Coupled Fermi Superfluid
   P. Zou, J. Brand, X.-J. Liu, H. Hu, Phys. Rev. Lett. 117, 225302 (2016) [arXiv]


2. Difficult-to-detect convergence problem of variational multi-mode quantum dynamics with attractive bosons
   J. Cosme, Ch. Weiss, J. Brand, Phys. Rev. A 94, 043603 (2016) [arXiv]


3. Dark-soliton-like excitations in the Yang-Gaudin gas of attractively interacting fermions
   S. S. Shamailov, J. Brand, New J. Phys. 18, 075004 (2016) [arXiv]


4. Noncollinear drag force in Bose-Einstein condensates with Weyl spin-orbit coupling
   R. Liao, O. Fialko, J. Brand, U. Zülicke, Phys. Rev. A 93, 023625 (2016) [arXiv]


5. Comment on: `Single-shot simulations of dynamic quantum many-body systems'
   P. D. Drummond, J. Brand, arXiv:1610.07633 (2016)

2015

1. Fate of the false vacuum: Towards realization with ultracold atoms
   O. Fialko, B. Opanchuk, R. Polkinghorne, P. D. Drummond, J. Brand, EPL 110, 56001 (2015) [arXiv]


2. Stability and dispersion relations of three-dimensional solitary waves in trapped Bose-Einstein condensates
   A. Muñoz Mateo and J. Brand, New J. Phys. 17, 125013 (2015) [arXiv]


3. Oscillons in coupled Bose-Einstein condensates
   S.-W. Su, S.-C. Guo, I-K. Liu, A. Bradley, O. Fialko, and J. Brand, Phys. Rev A 91, 023631 (2015) [arXiv]


4. Multicriticality, metastability, and the roton feature in Bose-Einstein condensates with three-dimensional spin-orbit coupling
   R. Liao, O. Fialko, J. Brand, U. Zülicke Phys. Rev A 92, 043633 (2015) [arXiv]


5. Relaxation dynamics of ultracold bosons in a double-well potential: Thermalization and prethermalization in a nearly integrable model
   J. Cosme and O. Fialko, Phys. Rev A 92, 033607 (2015)

2014

1. Chladni solitions and the onset of the snaking instability for dark solitons in confined superfluids
   A. Muñoz Mateo and J. Brand, Phys. Rev.Lett. 113, 255302 (2014) [arXiv]


2. Fragility of the quantum spin Hall effect in quantum gases
   O. Fialko, J. Brand, and U. Zülicke, New J. Phys. 16, 025006 (2014) [arXiv]


3. Thermalization in closed quantum systems: semiclassical approach
   J. Cosme and O. Fialko, Phys. Rev A 90, 053602 (2014) [arXiv]

2013

1. Kibble-Zurek Scaling and its Breakdown for Spontaneous Generation of Josephson Vortices in Bose-Einstein Condensates
   S.-W. Su, S.-C. Guo, A. Bradley, O. Fialko, and J. Brand, Phys. Rev.Lett. 110, 215302 (2013)[PDF]


2. Snake instability of dark soliton in fermionic superfluids
   A. Cetoli, J. Brand, R. G. Scott, F. Dalfovo, L. P. Pitaevskii, Phys. Rev. A 88, 143639 (2013) Editor's suggestion [arXiv]


3. Quantum simulations of the early universe
   B. Opanchuk, R. Polkinghorne, O. Fialko, J. Brand, P. D. Drummond, Ann. Phys. (Leipzig) 525, 866 (2013) [arXiv]


4. Erratum: Traveling dark solitons in superfluid Fermi gases [Phys. Rev.A 83, 041604(R) (2011)]
   R. Liao and J. Brand, Phys. Rev. A 87, 059901(E) (2013)[PDF]

2012

1. Nucleation in finite topological systems during continuous metastable quantum phase transitions
   O. Fialko, M.-C. Delattre, J. Brand, A. R. Kolovsky, Phys. Rev. Lett. 108, 250402 (2012)[PDF]


2. Soliton Magnetization Dynamics in Spin-Orbit Coupled Bose-Einstein Condensates
   O. Fialko, J. Brand, U. Zülicke, Phys. Rev. A 85, 051605(R) (2012)[PDF]


3. Robust Quantum Enhanced Phase Estimation in a Multimode Interferometer
   J. J. Cooper, D. W. Hallwood, J. A. Dunningham, and J. Brand, Rev. Lett. 108, 130402 (2012)[PDF]


4. Isolated Quantum Heat Engine
   O. Fialko and D. W. Hallwood, Phys. Rev. Lett. 108, 085303 (2012)[PDF]


5. Theory of superfluidity and drag force in the one-dimensional Bose gas
   A. Yu. Cherny, J.-S. Caux, J. Brand, Frontiers of Physics 7, 54 (2012)[PDF]


6. The decay and collisions of dark solitons in superfluid Fermi gases
   R.G. Scott, F. Dalfovo, L.P. Pitaevskii, S. Stringari, O. Fialko, R. Liao, J. Brand, New J. Phys. 14, 023044 (2012) [PDF]


7. Quantum tunneling of a vortex between two pinning potentials
   O. Fialko, A. S. Bradley, J. Brand, Phys. Rev. Lett. 108, 015301 (2012) [PDF]

2011

1. Engineering mesoscopic superpositions of superfluid flow
   D. W. Hallwood, J. Brand, Phys. Rev. A 84, 043620 (2011) [PDF]
   
   
2. Decay modes of two repulsively interacting bosons
   S. Kim, J. Brand, J. Phys. B: At. Mol. Opt. Phys. 44, 195301 (2011) [PDF]
   
   
3. Simulating strongly correlated multiparticle systems in a truncated Hilbert space
   T. Ernst, D. W. Hallwood, J. Gulliksen, H.-D. Meyer, Joachim Brand, Phys. Rev. A 84, 023623 (2011) [PDF]
   
   
4. Traveling Dark Solitons in Superfluid Fermi Gases
   R. Liao, J. Brand, Phys. Rev. A 82, 041604 (2011) [PDF]

2010

1. Robust Mesoscopic Superposition of Strongly Correlated Ultracold Atoms
   D. W. Hallwood, T. Ernst, J. Brand, Phys. Rev. A 82, 063623 (2010) [PDF]
   
   
2. Anisotropic Superfluidity in the Two-Species Polar Fermi Gas
   R. Liao, J. Brand, Phys. Rev. A 82, 063624 (2010) [PDF]
   
   
3. Resonant trapping in the transport of a matter-wave soliton through a quantum well
   T. Ernst, J. Brand, Phys. Rev. A 81, 033614 (2010) [PDF]
   
   
4. Sign of coupling in barrier-separated Bose-Einstein condensates and stability of double-ring systems
   J. Brand, T. J. Haigh, U. Zülicke, Phys. Rev. A 81, 025602 (2010) [PDF]
   
   
5. Transport of ultracold Bose gases beyond the Gross-Pitaevskii description
   T. Ernst, T. Paul, and P. Schlagheck, Phys. Rev. A 81, 013631 (2010) [PDF]
   
   

2009

1. Rotational Fluxons of Bose-Einstein Condensates in Coplanar Double-Ring Traps
   J. Brand, T. J. Haigh, U. Zülicke, Phys. Rev. A 80, 011602(R) (2009) [PDF]
   
   
2. Decay of superfluid currents in the interacting one-dimensional Bose gas
   A. Yu. Cherny, J.-S. Caux, J. Brand, Phys. Rev. A 80, 043604 (2009) [PDF]
   
   
3. Dynamic and static density-density correlations in the one-dimensional Bose gas: Exact results and approximations
   A. Yu. Cherny and J. Brand, Phys. Rev. A 79, 043607 (2009) [PDF]
   
   

2008

1. Localization by entanglement
   J. Brand, S. Flach, V. Fleurov, L. S. Schulmann, D. Tolkunov, Europhys. Lett., 83, 40002 (2008) [PDF] Preprint arXiv:0705.0943
   
   
2. Approximate expression for the dynamic structure factor in the Lieb-Liniger model
   A. Yu. Cherny, J. Brand, J. Phys.: Conf. Ser. 129, 012051 (2008) [PDF]
   
   
3. Multidimensional Solitons: Theory
   L. D. Carr, J. Brand, book chapter in "Emergent Nonlinear Phenomena in Bose-Einstein Condensates: Theory and Experiment" edited by P. G. Kevrekidis, D. J. Frantzeskakis, and R. Carretero-Gonzalez (Springer Berlin, 2008) [PDF] [arXiv]
   
   
4. Experiments on Multidimensional Solitons
   J. Brand, L. D. Carr, B. P. Anderson, book chapter in "Emergent Nonlinear Phenomena in Bose-Einstein Condensates: Theory and Experiment" edited by P. G. Kevrekidis, D. J. Frantzeskakis, and R. Carretero-Gonzalez (Springer Berlin, 2008) [PDF] [arXiv]
   
   

2007

1. Fano blockade by a Bose-Einstein condensate in an optical lattice
   R. A. Vicencio, J. Brand, S, Flach, Phys.Rev. Lett. 98, 184102(2007) [PDF]
   
   
2. Emergence of superfluid transport in a dynamical system of ultra-cold atoms
   J. Brand and A. R. Kolovsky, Europhys. J. D41, 331 (2007) [PDF]
   
   

2006

1. Friction and diffusion of matter-wave bright solitons
   S. Sinha, A. Yu. Cherny, D. Kovrizhin, and J. Brand, Phys. Rev. Lett. 96, 030406 (2006) [PDF]
   
   
2. The polarizability and dynamic structure factor of the 1D Bose gas near the Tonks-Girardeau limit at finite temperatures
   A. Yu. Cherny and J. Brand, Phys. Rev. A 73, 023612 (2006) [PDF]
   
   
3. Enhanced quantum reflection of matter-wave solitons
   Ch. Lee and J. Brand, Europhys. Lett. 73, 321 (2006) [PDF]
   
   

2005

1. Collisions of solitons and vortex rings in cylindrical Bose-Einstein condensates
   S. Komineas and J. Brand, Phys. Rev. Lett. 95, 110401 (2005) [PDF]
   
   
2. The Dynamic Structure Factor of the 1D Bose Gas near the Tonks-Girardeau Limit
   J. Brand and A. Yu. Cherny, Phys. Rev. A. 72, 033619 (2005) [PDF]
   
   
3. Scattering of topological solitons on holes and barriers
   B. Piette, W.J. Zakrzewski, and J. Brand, J. Phys. A: Math. Gen. 38, 10403 (2005) [PDF]
   IoP Select article
   
   
4. Solitonenkollisionen im Bose-Einstein-Kondensat
   J. Brand, Physik in unserer Zeit 36(3), 110 (2005) [PDF]
   
   
5. Observation of Hybrid Soliton Vortex-Ring Structures in Bose-Einstein Condensates
   N. S. Ginsberg, J. Brand, and L. V. Hau, Phys. Rev. Lett. 94, 040403 (2005) [PDF]
   Story on Physics News Update
   
   

2004

1. Self-consistent calculation of the coupling constant in the Gross-Pitaevskii equation
   A. Yu. Cherny and J. Brand, Phys. Rev. A. 70, 043622 (2004) [PDF]
   
   
2. Pulsed atomic soliton laser
   L. D. Carr and J. Brand, Phys. Rev. A. 70, 033607 (2004) [PDF]
   
   
3. A density-functional approach to fermionization in the 1D Bose gas
   J. Brand, J. Phys. B: At. Mol. Opt. Phys. 37 (2004) S287-S300 [PDF] Published version contains some misprints.
   Corrected manuscript at cond-mat/0311206.
   
   
4. Spontaneous soliton formation and modulational instability in Bose-Einstein condensates
   L. D. Carr and J. Brand, Phys. Rev. Lett. 92, 040401 (2004) [PDF]
   
   

pre 2004

1. Levinson-like theorem for scattering from a Bose-Einstein condensate
   J. Brand, I. Haering, J.-M. Rost, Phys. Rev. Lett. 91, 070403 (2003) [PDF]
   
   
2. Solitonic vortices and the fundamental modes of the "snake instability": Possibility of observation in the gaseous Bose-Einstein condensate
   J. Brand and W. P. Reinhardt, Phys. Rev. A, 65 (2002) 043612 [PDF]
   
   
3. Generating ring currents, solitons, and svortices by stirring a Bose-Einstein condensate in a toroidal trap
   J. Brand and W. P. Reinhardt, J. Phys. B: At. Mol. Opt. Phys., 34 (2001) L113-L119 [PDF]


4. Dark soliton creation in Bose-Einstein condensates
   L. D. Carr, J. Brand, S. Burger, and A. Sanpera, Phys. Rev. A, 63 (2001) 051601(R) [PDF]


5. Theory of Extended Two-Particle Green's Functions
   J. Brand and L. S. Cederbaum, Adv. Quant. Chem. 38 (2000) 65-120 [PDF]


6. The dynamical Green's function and an exact optical potential for electron-molecule scattering including nuclear dynamics
   J. Brand and L. S. Cederbaum, Phys. Rev. A, 60 (1999) 2983 [PDF]


7. Impact of narrow-band excitation on resonant decay spectra
   E. Pahl, J. Brand, L. S. Cederbaum, and F. Tarantelli, Phys. Rev. A, 60 (1999)  1079 [PDF]


8. First Order Static Excitation Potential: Scheme for Excitation Energies and Transition Moments
   J. Brand and L. S. Cederbaum, Phys. Rev. A, 57 (1998) 4311-432 [PDF]


9. Extended Two-Particle Green's Functions and Optical Potentials for Two-Particle Scattering by Many-Body Targets
   J. Brand and L. S. Cederbaum Annals Phys. (N.Y.) 252 (1996) 276-29 [PDF]


10. Optische Potentiale und Dyson-Gleichung jenseits der Einteilchen-Greensfunktion: Theorie der erweiterten Zweiteilchen-Greensfunktionen und der dynamischen Greensfunktion (Optical potentials and Dyson equation beyond the single-particle Green's function: Theory of the extended two-particle Green's functions and the dynamical Green's function)
    J. Brand, Doctoral thesis, University of Heidelberg (1999) [PDF]