Research

Publications

See my papers on arXiv.

• Variational Approach to the Snake Instability of a Bose-Einstein Condensate Soliton
  U. Tanyeri, M. A. Gürkan, A. Keles, M. Ö. Oktel
  arXiv:2507.04926 (2025)

• Vortex and fractional quantum Hall phases in a rotating anisotropic Bose gas
  U. Tanyeri, A. Kallushi, R. O. Umucalılar, A. Keles
  arXiv:2505.09452 Physical Review A 112, 023321 (2025)

• Rotating anisotropic Bose gas with large number of vortices
  A. Keles
  arXiv:2503.21982 Turkish Journal of Physics: Vol. 49: No. 2, Article 2 (2025)

• Emergence of pairing glue in repulsive Fermi gases with soft-core interactions
  A. Keles, Xiaopeng Li, Erhai Zhao
  arXiv:2309.17362 Phys. Rev. B 109, 054519 (2024)

• Vortex Lattices in Strongly Confined Quantum Droplets
  T. A. Yogurt, U. Tanyeri, A. Keleş and M. Ö. Oktel
  arXiv:2308.02704  Phys. Rev. A 108, 033315 (2023)

• Polarized Rabi-Coupled and Spinor Boson Droplets,
  T.A. Yogurt, A. Keleş and M.O. Oktel
  arXiv:2210.08946 Phys. Rev. A 107, 023322 (2023)

• Neural-network quantum states for a two-leg Bose-Hubbard ladder under magnetic flux
  K. Çeven, M. Ö. Oktel, A. Keleş
  arXiv:2209.05195, Phys. Rev. A 106, 063320 (2022) 

• Dimers, trimers, tetramers, and other multimers in a multiband Bose-Hubbard model,
  M. Iskin, A. Keleş
  arXiv:2208.01429, Phys. Rev. A 106, 043315 (2022).

• Stability of (N+1)-body fermion clusters in multiband Hubbard model,
  M. Iskin, A. Keleş
  arXiv:2204.10003 Phys. Rev. A 106, 033304  (2022).

• Spinor Boson Droplets Stabilized By Spin Fluctuations,
  T.A. Yogurt, A. Keleş and M.O. Oktel
  arXiv:2201.09628 Phys. Rev A 105, 043309 (2022)

• Rise and fall of plaquette order in Shastry-Sutherland magnet revealed by high-resolution functional renormalization group
  A. Keleş and Erhai Zhao
  arXiv:2111.02722 Phys. Rev. B 105, L041115 (2021).

•  Phase diagram of Rydberg-dressed Fermi gas in two dimensions,
  A. Keleş, Erhai Zhao, Xiaopeng Li
  arXiv:1906.04235 Phys. Rev. A 101, 023624 (2020).

• Scrambling dynamics and many-body chaos in a random dipolar spin model,
  A. Keleş, Erhai Zhao and W. Vincent Liu
  arXiv:1810.03815 Phys. Rev. A 99, 053620 (2019).

• Renormalization group analysis of dipolar Heisenberg model on square lattice,
  A. Keleş and Erhai Zhao
  arXiv:1803.02904 Phys. Rev. B 97, 245105 (2018)

• Absence of long-range order in a triangular spin system with dipolar interactions,
  A. Keleş and Erhai Zhao
  arXiv:1801.00842 Phys. Rev. Lett. 120, 187202 (2018).

• Theory of interacting fermions in shaken square optical lattice,
  A. Keleş, Erhai Zhao and W. Vincent Liu
  arXiv:1703.04074, Phys. Rev. A 95, 063619 (2017).

• Weyl nodes in periodic structures of superconductors and spin active materials,
  A. Keleş and Erhai Zhao
  arXiv:1506.05166, Phil. Trans. Roy. Soc. A 376, 20150151 (2016)

• Competing many-body instabilities in two-dimensional dipolar Fermi gases,
  A. Keleş and Erhai Zhao
  arXiv:1512.06147, Phy. Rev. A 94, 033616 (2016).

• Mott Transition in a Two Leg Bose Hubbard Ladder Under an Artificial Magnetic Field,
  A. Keleş and Ö. Oktel
  arXiv:1411.0749, Phys. Rev. A 91, 013629 (2015).

• Theory of Disordered unconventional superconductors,
  A. Keleş, A. Andreev, S. A. Kivelson, B.Z. Spivak
  arXiv:1405.7090, J. Exp. Theo. Phys. 119(6), 1109 (2015).

• Vortex lattices in dipolar two-component Bose-Einstein condensates,
  N. Ghazanfari, A. Keleş and Ö. Oktel
  arXiv:1402.1020, Physical Review A 89, 025601 (2014).

• Electron transport in p-wave superconductor-normal metal junctions,
  A. Keleş, A. Andreev and B.Z. Spivak
  arXiv:1310.8015, Physical Review B 89, 014505 (2014).

• Ground-state properties, vortices, and collective excitations in a two-dimensional Bose-Einstein condensate with gravitylike interatomic attraction,
  A. Keleş, S. Sevinçli and B. Tanatar,
  Phys. Rev. A 77, 053604 (2009)

• Ground-state properties and collective excitations in a 2D Bose-Einstein condensate with gravity-like interatomic attraction,
  A. Keleş, S. Sevinçli and B. Tanatar
  J. Low Temp. Phys., 150, 630 (2008)

Dissertations

• Transport properties of chiral p-wave superconductor-normal metal nanostructures,
  A. Keleş
  PhD Thesis, University of Washington (2014)

• Rotating Two Leg Bose Hubbard Ladder,
  A. Keleş
  Master’s Thesis, Bilkent University (2009)