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QuantumFrontiers
 
QuantumFrontiers Research Topics

Spin and Transport Model

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Understanding transport, dynamics and spin physics in many-body quantum systems from solid-state devices to cold atoms, molecules and trapped ions.

Contributions to QuantumFrontiers

  • This Topical Group focuses on the properties of many-body quantum systems, and especially their dynamics, as well as on its possible applications, in particular in the context of quantum simulations.
  • Focusing on different possible implementations (polar lattice gases, ion Coulomb crystals, Twisted-bilayer lattices) we are particularly interested in understanding challenging questions, in particular out-of-equilibrium many-body dynamics.
  • We establish new concrete scientific collaborations between groups in PTB, TUBS, and LUH.

Collaborative Innovation

  • Quantum many-body dynamics: non-ergodicity, many-body localization, quantum scars (Karrasch TUBS, Osborne, Santos LUH)
  • Quantum simulation of extended lattice models using polar molecules in optical lattices: spin models, interaction-induced localization (S. Ospelkaus, Santos LUH)
  • Transport in ion Coulomb crystals (Mehlstäubler PTB, Santos LUH)
  • Transport in Twisted-Bilayer-like optical lattices, localization in quasi-crystal geometries, analogies with twisted-bilayer-graphene (Recher TUBS, Santos LUH)
  • Simulation of many-body dynamics in NISQ devices: error mitigation strategies, implementation in QVLS devices (Osborne, Santos LUH)

Scientific Output

  • Publications
    Paul GC, Recher P, Santos L. Particle dynamics and ergodicity breaking in twisted-bilayer optical lattices. Physical Review A. 2023 Nov 2;108(5):053305. doi: 10.48550/arXiv.2306.01588, 10.1103/PhysRevA.108.053305
    Jamadagni A, Weimer H. Operational definition of topological order. Physical Review B. 2022 Aug 31;106(8):085143. doi: https://arxiv.org/abs/2005.06501, 10.1103/PhysRevB.106.085143
    Probst B, Virtanen P, Recher P. Sub- to Super-Poissonian crossover of current noise in helical edge states coupled to a spin impurity in a magnetic field. Physical Review B. 2022 Aug 4;106(8):085406. doi: 10.1103/PhysRevB.106.085406
    Singh VP, Weimer H. Driven-Dissipative Criticality within the Discrete Truncated Wigner Approximation. Physical Review Letters. 2022 May 17;128(20):200602. doi: 10.48550/arXiv.2108.07273, 10.1103/PhysRevLett.128.200602
    Voges KK, Gersema P, Hartmann T, Ospelkaus-Schwarzer S, Zenesini A. Hyperfine dependent atom-molecule loss analyzed by the analytic solution of few-body loss equations. Physical Review Research. 2022 Jun;4(2):023184. Epub 2022 Jun 6. doi: 10.48550/arXiv.2109.03605, 10.1103/PhysRevResearch.4.023184
    De Beule C, Dominguez F, Recher P. Effective Floquet model for minimally twisted bilayer graphene. Physical Review B. 2021 May 21;103(19):195432. doi: 10.1103/PhysRevB.103.195432
    Gersema P, Voges KK, Meyer zum Alten Borgloh M, Koch L, Hartmann T, Zenesini A et al. Probing Photoinduced Two-Body Loss of Ultracold Nonreactive Bosonic Na23Rb87 and Na23K39 Molecules. Physical review letters. 2021 Oct 11;127(16):163401. doi: 10.1103/PhysRevLett.127.163401
    Jamadagni A, Ospelkaus S, Santos L, Weimer H. Quantum Zeno-based detection and state engineering of ultracold polar molecules. Physical Review Research. 2021 Sept 2;3(3):033208. doi: 10.1103/PhysRevResearch.3.033208
    Kaebert P, Stepanova M, Poll T, Petzold M, Xu S, Siercke M et al. Characterizing the Zeeman slowing force for 40Ca19F molecules. New journal of physics. 2021 Sept 8;23(9):093013. doi: 10.1088/1367-2630/ac1ed7
    Kiethe J, Timm L, Landa H, Kalincev D, Morigi G, Mehlstäubler TE. Finite-temperature spectrum at the symmetry-breaking linear to zigzag transition. Physical Review B. 2021 Mar 19;103(10):104106. doi: 10.1103/PhysRevB.103.104106
    Li WH, Dhar A, Deng X, Santos L. Cluster dynamics in two-dimensional lattice gases with intersite interactions. Physical Review A. 2021 Apr 23;103(4):043331. doi: 10.1103/PhysRevA.103.043331
    Li WH, Deng X, Santos L. Hilbert Space Shattering and Disorder-Free Localization in Polar Lattice Gases. Physical Review Letters. 2021 Dec 20;127(26):260601 . doi: 10.48550/arXiv.2103.13780, 10.1103/PhysRevLett.127.260601
    Madsen KA, Brouwer PW, Recher P, Silvestrov PG. Interference effects induced by a precessing easy-plane magnet coupled to a helical edge state. Physical Review B. 2021 Mar 24;103(11):115142. doi: 10.1103/PhysRevB.103.115142
    Timm L, Rüffert LA, Weimer H, Santos L, Mehlstäubler TE. Quantum nanofriction in trapped ion chains with a topological defect. Physical Review Research. 2021 Nov 29;3(4):043141 . doi: 10.48550/arXiv.2108.07635, 10.1103/PhysRevResearch.3.043141
    Xu S, Kaebert P, Stepanova M, Poll T, Siercke M, Ospelkaus S. Maximizing the capture velocity of molecular magneto-optical traps with Bayesian optimization. New journal of physics. 2021 Jun 21;23(6):063062. doi: 10.1088/1367-2630/ac06e6
    De Beule C, Dominguez F, Recher P. Aharonov-Bohm Oscillations in Minimally Twisted Bilayer Graphene. Physical review letters. 2020 Aug 28;125(9):096402. doi: 10.1103/PhysRevLett.125.096402
    Deng X, Masella G, Pupillo G, Santos L. Universal algebraic growth of entanglement entropy in many-body localized systems with power-law interactions. Physical Review Letters. 2020 Jun 29;125(1):010401. 010401. doi: 10.1103/PhysRevLett.125.010401
    Li WH, Dhar A, Deng X, Kasamatsu K, Barbiero L, Santos L. Disorderless Quasi-localization of Polar Gases in One-Dimensional Lattices. Physical Review Letters. 2020 Jan 10;124(1):010404. doi: 10.48550/arXiv.1901.09762, 10.1103/PhysRevLett.124.010404
    Novik EG, Trauzettel B, Recher P. Transport signatures of a junction between a quantum spin Hall system and a chiral topological superconductor. Physical Review B. 2020 Jun 15;101(23):235308. doi: 10.1103/PhysRevB.101.235308
    Pistorius T, Kazemi J, Weimer H. Quantum Many-Body Dynamics of Driven-Dissipative Rydberg Polaritons. Physical review letters. 2020 Dec 30;125(26):263604. doi: 10.48550/arXiv.2003.10463, 10.1103/PhysRevLett.125.263604
    Schuray A, Rammler M, Recher P. Signatures of the Majorana spin in electrical transport through a Majorana nanowire. Physical Review B. 2020 Jul 15;102(4):045303. doi: 10.1103/PhysRevB.102.045303
    Voges KK, Gersema P, Meyer Zum Alten Borgloh M, Schulze TA, Hartmann T, Zenesini A et al. Ultracold Gas of Bosonic Na 23 K 39 Ground-State Molecules. Physical review letters. 2020 Aug 21;125(8):083401. doi: 10.1103/physrevlett.125.083401
    Weimer H, Timm L, Santos LS, Mehlstäubler TE. Energy localization in an atomic chain with a topological soliton. Physical Review Research. 2020 Aug 5;2(3):033198. doi: 10.1103/PhysRevResearch.2.033198, 10.1103/physrevresearch.2.033198, 10.48550/arXiv.1910.02135
    Whitlock S, Wildhagen H, Weimer H, Weidemüller M. Diffusive to Nonergodic Dipolar Transport in a Dissipative Atomic Medium. Physical review letters. 2019 Nov;123(21):213606. Epub 2019 Nov 22. doi: 10.48550/arXiv.1809.07532, 10.1103/PhysRevLett.123.213606

TG Members

  • Involved Members and their Relevant Expertise
    Members Institution Relevant Expertise
    Luis Santos, Leader LUH Theory of Dynamics of Manybody Quantum Systems; Twisted-bilayer-graphene physics in ultracold atoms in optical potentials
    Hendrik Weimer LUH Theory of Dynamics of Manybody Quantum Systems
    N.N. LUH Theory of Dynamics of Manybody Quantum Systems
    Silke Ospelkaus LUH Exotic Spin Systems with Molecules; Application of Ultracold Molecular Systems for Precision Measurements and Quantum Many-Body Physics
    Mirco Siercke LUH Exotic Spin Systems with Molecules
    Tanja Mehlstäubler PTB / LUH Integrated Chip Traps and Optical Components; Dynamics of Ion Coulomb Crystals
    Luca Rüffert PTB Integrated Chip Traps and Optical Components; Dynamics of Ion Coulomb Crystals
    Daniel Vadlejch PTB Integrated Chip Traps and Optical Components; Dynamics of Ion Coulomb Crystals
    Lars Timm PTB / LUH Dynamics of ion Coulomb Crystals
    Christian Ospelkaus LUH / PTB Scalable Surface-Electrode Ion Traps
    Patrik Recher TUBS Theory of Emergent Correlated Quantum Matter; Josephson Junctions; Twisted Bilayer Graphene; Twisted-bilayer-graphene physics in ultracold atoms in optical potentials
    Peter Silvestrov TUBS Twisted Bilayer Graphene
    Wolfram Brenig TUBS strongly correlated electron systems; quantum transport, quantum critical systems; low dimensional quantum magnets
    Andrey Surzhykov PTB / TUBS Light-Matter Interfaces and Dynamics
    Peter Lemmens TUBS Spin liquids in 2D frustrated spin lattice models
    Michael Oestreich LUH Spin and charge carrier dynamics in complex semiconductor nanostructures; spin noise spectroscopy
    Jens Hübner LUH Spin and charge carrier dynamics in complex semiconductor nanostructures; spin noise spectroscopy
    Eduard Sauter LUH Spin and charge carrier dynamics in complex semiconductor nanostructures; spin noise spectroscopy
    Kai Hühn LUH Spin and charge carrier dynamics in complex semiconductor nanostructures; spin noise spectroscopy
    Pavel Sterin LUH Spin and charge carrier dynamics in complex semiconductor nanostructures; spin noise spectroscopy
    Christoph Karrasch TUBS Strongly-correlated systems; non-equilibrium dynamics; Matrix Product State techniques; Functional Renormalization group; Transport through quantum dots and wires
    Tobias Osborne LUH Tensor network techniques; Quantum Neural Networks

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Last Change: 24.02.26; Dr. A. Wanner Print

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