Quantum simulations, computations, and sensing with novel quantum molecular systems


Program: Homing Grant, Foundation for Polish Science
Number: POIR.04.04.00-00-21F7/16
Amount: 781,000 PLN (~180,000 EUR)
Date: VII 2017 – VI 2019
PI: Michał Tomza

We propose novel quantum molecular systems for applications in quantum simulations, computations, and sensing. We investigate two architectures based on ultracold highly magnetic and polar molecules trapped in a harmonic trap or optical lattice, on one hand, and on polar molecular ions forming Coulomb crystal trapped in a linear Paul trap, on the other hand. For both systems we investigate geometries, interactions, quantum many-body phases, time-dependent dynamics, and possible control schemes with external laser, microwave, magnetic, and electric fields. We propose the quantum simulations of novel few- and many-body quantum phenomena, the feasible implementation schemes of one- and two-qubit quantum gates for quantum computations with molecular rovibrational states serving as qubits, and applications of engineered quantum devices for quantum sensing.

People:

  1. Dr. Michał Tomza (PI)
  2. Anna Dawid-Łękowska (PhD student)
  3. Klaudia Zaremba-Kopczyk (MSc/PhD student)
  4. Paweł Wójcik (MSc student)

Publications:

  1. M. Sroczyńska, A. Dawid, M. Tomza, Z. Idziaszek, T. Calarco, K. Jachymski
    Controlling the dynamics of ultracold polar molecules in optical tweezers
    New J. Phys. 24, 015001 (2022)
  2. A. Dawid, M. Tomza
    Magnetic properties and quench dynamics of two interacting ultracold molecules in a trap
    Phys. Chem. Chem. Phys. 22, 28140 (2020)
    Special issue on “Quantum Computing and Quantum Information Storage”
  3. M. Tomza, K. Jachymski, R. Gerritsma, A. Negretti, T. Calarco, Z. Idziaszek, P. S. Julienne
    Cold hybrid ion-atom systems
    Rev. Mod. Phys. 91, 035001 (2019)
    Review article
  4. D. González-Cuadra, A. Dauphin, P. R. Grzybowski, P. Wójcik, M. Lewenstein, A. Bermudez
    Symmetry-breaking topological insulators in the Z2 Bose-Hubbard model
    Phys. Rev. B 99, 045139 (2019)
  5. P. Wójcik, T. Korona, M. Tomza
    Interactions of benzene, naphthalene, and azulene with alkali-metal and alkaline-earth-metal atoms for ultracold studies
    J. Chem. Phys. 150, 234106 (2019)
    Highlighted as Editor’s Pick and Featured on the cover page
  6. K. Zaremba-Kopczyk, P. S. Żuchowski, M. Tomza
    Magnetically tunable Feshbach resonances in ultracold gases of europium atoms and mixtures of europium and alkali-metal atoms
    Phys. Rev. A, 98, 032704 (2018)
  7. A. Dawid, M. Lewenstein, M. Tomza
    Two interacting ultracold molecules in a one-dimensional harmonic trap
    Phys. Rev. A 97, 063618 (2018)
    Highlighted as Editors’ Suggestion