Quantum Cosmos Lab

We are an interdisciplinary research team exploring physics at the interface between quantum mechanics and the theory of gravity. Our activity is mainly devoted to fundamental studies within theoretical physics and cosmology.

Publications

  1. G. Czelusta and J. Mielczarek, Quantum variational solving of the Wheeler-DeWitt equation, Phys. Rev. D 105 no.12, 126005 (2022)
  2. A. Addazi, et al. [J. Mielczarek, T. Trześniewski], Quantum gravity phenomenology at the dawn of the multi-messenger era- A review, Prog. Part. Nucl. Phys. 125, 103948 (2022)
  3. J. Mielczarek, Prelude to Simulations of Loop Quantum Gravity on Adiabatic Quantum Computers, Front. Astron. Space Sci. 8:571282 (2021)
  4. D. Artigas, S. Crowe and J. Mielczarek, Quantum fluctuations of the compact phase space cosmology, Class. Quantum Grav. 38 , 085007 (2021)
  5. G. Czelusta, J. Mielczarek, Quantum simulations of a qubit of space, Phys. Rev. D 103, 046001 (2021) 
  6. D. Artigas, J. Bilski, S. Crowe, J. Mielczarek and T. Trześniewski, General-relativistic spin system, Phys. Rev. D 102, 125029 (2020)
  7. M. Eckstein and T. Trześniewski, Spectral dimensions and dimension spectra of quantum spacetimes, Phys. Rev. D 102, 086003 (2020)
  8. J. Mielczarek and T. Trześniewski, Gauge fields and quantum entanglement, Phys. Lett. B 810, 135808 (2020)
  9. J. Kowalski-Glikman, J. Lukierski and T. Trześniewski, Quantum D=3 Euclidean and Poincaré symmetries from contraction limits, JHEP 2020, 96 (2020)
  10. B. Baytaş, M. Bojowald, S. Crowe and J. Mielczarek, Minisuperspace results for causal dynamical triangulations, JCAP 2001, 019 (2020)
  11. D. Artigas, J. Mielczarek and C. Rovelli, A minisuperspace model of compact phase space gravity, Phys. Rev. D 100, 043533 (2019)
  12. J. Mielczarek, Spin Foam Vertex Amplitudes on Quantum Computer – Preliminary Results, Universe 5(8), 179 (2019)
  13. M. Artymowski and J. Mielczarek, Quantum Hubble horizon, Eur. Phys. J. C 79, 632 (2019)
  14. M. L. Mandrysz and J. Mielczarek, Ultralocal nature of geometrogenesis, Class. Quant. Grav. 36, 015004 (2019)
  15. J. Mielczarek and T. Trześniewski, Towards the map of quantum gravity, Gen. Relativ. Gravit. 50, 68 (2018)
  16. J. Bilski, S. Brahma, A. Marcianò and J. Mielczarek, Klein–Gordon field from the XXZ Heisenberg model, Int. J. Mod. Phys. D 28, 1950020 (2018)
  17. T. Trześniewski, Effective Chern–Simons actions of particles coupled to 3D gravity, Nucl. Phys. B 928, 448 (2018)
  18. J. Mielczarek, L. Linsefors and A. Barrau, Silent initial conditions for cosmological perturbations with a change of spacetime signature,” Int. J. Mod. Phys. D 27, 1850050 (2018)
  19. J. Mielczarek and T. Trześniewski, Nonlinear Field Space Cosmology, Phys. Rev. D 96, 043522 (2017)
  20. T. Trześniewski, Nonlinear Field Space Theory and Quantum Gravity, Acta Phys. Pol. B Proc. Suppl. 10, 329 (2017)
  21. J. Mielczarek, Spin-Field Correspondence, Universe 3, 29 (2017)
  22. J. Mielczarek and T. Trześniewski, Spectral dimension with deformed spacetime signature, Phys. Rev. D 96, 024012 (2017)
  23. J. Luc and J. Mielczarek, Slow-roll approximation in loop quantum cosmology, JCAP 1701, 045 (2017)
  24. J. Mielczarek, From Causal Dynamical Triangulations To Astronomical Observations, EPL 119, 60003 (2017)
  25. M. Arzano and T. Trześniewski, Space-Time Defects and Group Momentum Space, Adv. High Energy Phys. 2017, 4731050 (2017)
  26. J. Mielczarek, Big Bang as a critical point, Adv. High Energy Phys. 2017, 4015145 (2017)
  27. S. Schander, A. Barrau, B. Bolliet, L. Linsefors, J. Mielczarek and J. Grain, Primordial scalar power spectrum from the Euclidean Big Bounce, Phys. Rev. D 93, 023531 (2016)
  28. J. Mielczarek and T. Trześniewski, The Nonlinear Field Space Theory, Phys. Lett. B 759, 424 (2016)
  29. M. Bojowald and J. Mielczarek, Some implications of signature-change in cosmological models of loop quantum gravity, JCAP 1508 no.08, 052 (2015)
  30. J. Mielczarek and W. Piechocki, Level spacing distribution for the prototype of the Bianchi IX model, Acta Phys. Polon. B 46, 1729 (2015)
  31. J. Kowalski-Glikman and T. Trześniewski, Deformed Carroll particle from 2+1 gravity, Phys. Lett. B 737, 267 (2014)
  32. M. Arzano and T. Trześniewski, Diffusion on κ-Minkowski space, Phys. Rev. D 89, 124024 (2014)
  33. J. Mielczarek, Inflationary power spectra with quantum holonomy corrections, JCAP 1403, 048 (2014)
  34. A. Barrau, T. Cailleteau, J. Grain and J. Mielczarek, Observational issues in loop quantum cosmology, Class. Quant. Grav. 31, 053001 (2014)
  35. M. Arzano, J. Kowalski-Glikman and T. Trześniewski, Beyond Fock space in three-dimensional semiclassical gravity, Class. Quant. Grav. 31, 035013 (2014)
  36. J. Mielczarek, Loop-deformed Poincare algebra,” EPL 108, 40003 (2014)
  37. J. Mielczarek, Signature change in loop quantum cosmology, Springer Proc. Phys. 157, 555 (2014)
  38. J. P. Gazeau, J. Mielczarek and W. Piechocki, Quantum states of the bouncing universe, Phys. Rev. D 87, 123508 (2013)
  39. J. Mielczarek, Asymptotic silence in loop quantum cosmology, AIP Conf. Proc. 1514, 81 (2013)
  40. T. Cailleteau, J. Mielczarek, A. Barrau and J. Grain, Anomaly-free scalar perturbations with holonomy corrections in loop quantum cosmology, Class. Quant. Grav. 29, 095010 (2012)
  41. J. Mielczarek and W. Piechocki, Gaussian state for the bouncing quantum cosmology, Phys. Rev. D 86, 083508 (2012)
  42. J. Mielczarek and W. Piechocki, Evolution in bouncing quantum cosmology, Class. Quant. Grav. 29, 065022 (2012)
  43. J. Mielczarek, T. Cailleteau, A. Barrau and J. Grain, Anomaly-free vector perturbations with holonomy corrections in loop quantum cosmology, Class. Quant. Grav. 29, 085009 (2012)
  44. J. Mielczarek and M. Kamionka, Smoothed quantum fluctuations and CMB observations, Int. J. Mod. Phys. D 21,1250080 (2012)
  45. J.Ambjørn, A.Görlich, J. Jurkiewicz, R. Loll, J. Gizbert-Studnicki and T. Trześniewski, The semiclassical limit of causal dynamical triangulations, Nucl. Phys. B 849, 144 (2011)
  46. J. Mielczarek and W. Piechocki, Quantum of volume in de Sitter space, Phys. Rev. D 83, 104003 (2011)
  47. J. Grain, A. Barrau, T. Cailleteau and J. Mielczarek, Observing the Big Bounce with Tensor Modes in the Cosmic Microwave Background: Phenomenology and Fundamental LQC Parameters, Phys. Rev. D 82, 123520 (2010)
  48. J. Mielczarek, Reheating temperature from the CMB, Phys. Rev. D 83, 023502 (2011)
  49. J. Mielczarek, M. Kamionka, A. Kurek and M. Szydłowski, Observational hints on the Big Bounce, JCAP 1007 (2010) 004
  50. J. Mielczarek, T. Cailleteau, J. Grain and A. Barrau, Inflation in loop quantum cosmology: dynamics and spectrum of gravitational waves,” Phys. Rev. D 81, 104049 (2010)
  51. J. Mielczarek and W. Piechocki, Observables for FRW model with cosmological constant in the framework of loop cosmology, Phys. Rev. D 82, 043529 (2010)
  52. J. Mielczarek, Possible observational effects of loop quantum cosmology, Phys. Rev. D 81, 063503 (2010)
  53. J. Mielczarek, T. Stachowiak and M. Szydłowski, Vortex in axion condensate as a dark matter halo, Int. J. Mod. Phys. D 19, 1843 (2010)
  54. O. Hrycyna, J. Mielczarek and M. Szydłowski, Asymmetric cyclic evolution in polymerised cosmology, JCAP 0912, 023 (2009)
  55. J. Mielczarek, O. Hrycyna and M. Szydłowski, Effective dynamics of the closed loop quantum cosmology, JCAP 0911, 014 (2009)
  56. J. Mielczarek, Tensor power spectrum with holonomy corrections in LQC, Phys. Rev. D 79, 123520 (2009)
  57. J. Mielczarek, Multi-fluid potential in the loop cosmology, Phys. Lett. B 675, 273 (2009)
  58. O. Hrycyna, J. Mielczarek and M. Szydłowski, Effects of the quantisation ambiguities on the Big Bounce dynamics, Gen. Rel. Grav. 41, 1025 (2009)
  59. J. Mielczarek, Gravitational waves from the Big Bounce, JCAP 0811, 011 (2008)
  60. J. Mielczarek and M. Szydłowski, Universe from vacuum in loop-string quantum cosmology, JCAP 0808, 014 (2008)
  61. J. Mielczarek and M. Szydłowski, Emerging singularities in the bouncing loop cosmology, Phys. Rev. D 77, 124008 (2008)
  62. J. Mielczarek, T. Stachowiak and M. Szydłowski, Exact solutions for Big Bounce in loop quantum cosmology, Phys. Rev. D 77, 123506 (2008)
  63. J. Mielczarek and M. Szydłowski, Relic gravitons as the observable for loop quantum cosmology, Phys. Lett. B 657, 20 (2007)