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Hubbard model for atomic impurities bound by the vortex lattice of a rotating BEC
We investigate cold bosonic impurity atoms trapped in a vortex lattice formed by condensed bosons of another species. We describe the dynamics of the impurities by a bosonic Hubbard model containing occupation-dependent...
Deconstructing the Hubbard Hamiltonian by Ultrafast Quantum Modulation Spectroscopy in Solid-state Mott Insulators
S. Kaiser, S. R. Clark, D. Nicoletti, G. Cotugno, R. I. Tobey, N. Dean, S. Lupi, H. Okamoto, T. Hasegawa, D. Jaksch, A. Cavalleri
Jan 22, 2014
Most available theories for correlated electron transport are based on the Hubbard Hamiltonian. In this effective theory, renormalized hopping and interaction parameters only implicitly incorporate the coupling of correlated...
Hubbard model for atomic impurities bound by the vortex lattice of a rotating BEC
We investigate cold bosonic impurity atoms trapped in a vortex lattice formed by condensed bosons of another species. We describe the dynamics of the impurities by a bosonic Hubbard model containing occupation-dependent...
Deconstructing the Hubbard Hamiltonian by Ultrafast Quantum Modulation Spectroscopy in Solid-state Mott Insulators
S. Kaiser, S. R. Clark, D. Nicoletti, G. Cotugno, R. I. Tobey, N. Dean, S. Lupi, H. Okamoto, T. Hasegawa, D. Jaksch, A. Cavalleri
Jan 22, 2014
Most available theories for correlated electron transport are based on the Hubbard Hamiltonian. In this effective theory, renormalized hopping and interaction parameters only implicitly incorporate the coupling of correlated...
THz-frequency modulation of the Hubbard <i>U</i> in an organic Mott insulator
R. Singla, G. Cotugno, S. Kaiser, M. Först, M. Mitrano, H. Y. Liu, A. Cartella, C. Manzoni, H. Okamoto, T. Hasegawa, S. R. Clark, D. Jaksch, A. Cavalleri
Oct 30, 2015
We use midinfrared pulses with stable carrier-envelope phase offset to drive molecular vibrations in the charge transfer salt ET-F2TCNQ, a prototypical one-dimensional Mott insulator. We find that the Mott gap, which is...
Enhancement of super-exchange pairing in the periodically-driven Hubbard model
We show that periodic driving can enhance electron pairing in strongly-correlated systems. Focusing on the strong-coupling limit of the doped Hubbard model we investigate in-gap, spatially inhomogeneous, on-site modulations and...
Enhancement of super-exchange pairing in the periodically-driven Hubbard model
We show that periodic driving can enhance electron pairing in strongly-correlated systems. Focusing on the strong-coupling limit of the doped Hubbard model we investigate in-gap, spatially inhomogeneous, on-site modulations and...
THz-frequency modulation of the Hubbard <i>U</i> in an organic Mott insulator
R. Singla, G. Cotugno, S. Kaiser, M. Först, M. Mitrano, H. Y. Liu, A. Cartella, C. Manzoni, H. Okamoto, T. Hasegawa, S. R. Clark, D. Jaksch, A. Cavalleri
Oct 30, 2015
We use midinfrared pulses with stable carrier-envelope phase offset to drive molecular vibrations in the charge transfer salt ET-F2TCNQ, a prototypical one-dimensional Mott insulator. We find that the Mott gap, which is...
Ab initio derivation of Hubbard models for cold atoms in optical lattices
We derive ab initio local Hubbard models for several optical lattice potentials of current interest, including the honeycomb and Kagom\'{e} lattices, verifying their accuracy on each occasion by comparing the interpolated band...
Molecular exploration of fossil eggshell uncovers hidden lineage of giant extinct bird.
Alicia Grealy, Gifford H Miller, Matthew J Phillips, Simon J Clarke, Marilyn Fogel, Diana Patalwala, Paul Rigby, Alysia Hubbard, Beatrice Demarchi, Matthew Collins, Meaghan Mackie, Jorune Sakalauskaite, Josefin Stiller, Julia A Clarke, Lucas J Legendre, Kristina Douglass, James Hansford, James Haile, Michael Bunce
Mar 01, 2023
Ab initio derivation of Hubbard models for cold atoms in optical lattices
We derive ab initio local Hubbard models for several optical lattice potentials of current interest, including the honeycomb and Kagom\'{e} lattices, verifying their accuracy on each occasion by comparing the interpolated band...
Re-entrance and entanglement in the one-dimensional Bose-Hubbard model
Re-entrance is a novel feature where the phase boundaries of a system exhibit a succession of transitions between two phases A and B, like A-B-A-B, when just one parameter is varied monotonically. This type of re-entrance is...
Re-entrance and entanglement in the one-dimensional Bose-Hubbard model
Re-entrance is a novel feature where the phase boundaries of a system exhibit a succession of transitions between two phases A and B, like A-B-A-B, when just one parameter is varied monotonically. This type of re-entrance is...
Capturing the re-entrant behaviour of one-dimensional Bose-Hubbard model
The Bose Hubbard model (BHM) is an archetypal quantum lattice system exhibiting a quantum phase transition between its superfluid (SF) and Mott-insulator (MI) phase. Unlike in higher dimensions the phase diagram of the BHM in...
Capturing the re-entrant behaviour of one-dimensional Bose-Hubbard model
The Bose Hubbard model (BHM) is an archetypal quantum lattice system exhibiting a quantum phase transition between its superfluid (SF) and Mott-insulator (MI) phase. Unlike in higher dimensions the phase diagram of the BHM in...
Ultra-fast control of magnetic relaxation in a periodically driven Hubbard model
Juan Jose Mendoza-Arenas, Fernando Javier Gomez-Ruiz, Martin Eckstein, Dieter Jaksch, Stephen R. Clark
Oct 11, 2017
Motivated by cold atom and ultra-fast pump-probe experiments we study the melting of long-range antiferromagnetic order of a perfect N\'eel state in a periodically driven repulsive Hubbard model. The dynamics is calculated for a...
Ultra-fast control of magnetic relaxation in a periodically driven Hubbard model
Juan Jose Mendoza-Arenas, Fernando Javier Gomez-Ruiz, Martin Eckstein, Dieter Jaksch, Stephen R. Clark
Oct 11, 2017
Motivated by cold atom and ultra-fast pump-probe experiments we study the melting of long-range antiferromagnetic order of a perfect N\'eel state in a periodically driven repulsive Hubbard model. The dynamics is calculated for a...
Desacetyl-α-melanocyte stimulating hormone and α-melanocyte stimulating hormone are required to regulate energy balance.
Kathleen G Mountjoy, Alexandre Caron, Kristina Hubbard, Avik Shome, Angus C Grey, Bo Sun, Sarah Bould, Martin Middleditch, Beau Pontré, Ailsa McGregor, Paul WR Harris, Renata Kowalczyk, Margaret A Brimble, Rikus Botha, Karen ML Tan, Sarah J Piper, Christina Buchanan, Syann Lee, Anthony P Coll, Joel K Elmquist
Feb 07, 2018
OBJECTIVE: Regulation of energy balance depends on pro-opiomelanocortin (POMC)-derived peptides and melanocortin-4 receptor (MC4R). Alpha-melanocyte stimulating hormone (α-MSH) is the predicted natural POMC-derived peptide that...
Molecular exploration of fossil eggshell uncovers hidden lineage of giant extinct bird.
Alicia Grealy, Gifford H Miller, Matthew J Phillips, Simon J Clarke, Marilyn Fogel, Diana Patalwala, Paul Rigby, Alysia Hubbard, Beatrice Demarchi, Matthew Collins, Meaghan Mackie, Jorune Sakalauskaite, Josefin Stiller, Julia A Clarke, Lucas J Legendre, Kristina Douglass, James Hansford, James Haile, Michael Bunce
Mar 31, 2023
The systematics of Madagascar's extinct elephant birds remains controversial due to large gaps in the fossil record and poor biomolecular preservation of skeletal specimens. Here, a molecular analysis of 1000-year-old fossil...
Published by: Nature Communications
Pressure dependent relaxation in the photo-excited Mott insulator ETF2TCNQ
M. Mitrano, G. Cotugno, S. R. Clark, R. Singla, S. Kaiser, J. Staehler, R. Beyer, M. Dressel, L. Baldassarre, D. Nicoletti, A. Perucchi, T. Hasegawa, H. Okamoto, D. Jaksch, A. Cavalleri
Mar 21, 2014
Femtosecond relaxation of photo-excited quasiparticles in the one dimensional Mott insulator ET-F2TCNQ are measured as a function of external pressure, which is used to tune the electronic structure. By fitting the static...
A Novel Phosphorylation Site in the Telomeric Protein TRF2 is Regulated by the ATR Kinase and Plays a Role in Relieving Replication Stress at the Telomere
Kristina Hoke
Jan 01, 0001
Phosphatidyl inositol 3-kinase-like kinases (PIKKs) have a well documented function at yeast telomeres. Although several lines of evidence suggest that members of the PIKK family also play a role in vertebrate telomere biology...
Published by: Rockefeller University
Characterizing Inflammatory Mechanisms in Hidradenitis Suppurativa
Kristina Navrazhina
Jan 01, 0001
Hidradenitis suppurativa (HS) is an inflammatory skin disease manifesting in painful nodules and abscesses, and malodorous draining tunnels in more advanced disease. Effective treatment options remain limited, with Tumor...
Published by: Rockefeller University
Pressure dependent relaxation in the photo-excited Mott insulator ETF2TCNQ
M. Mitrano, G. Cotugno, S. R. Clark, R. Singla, S. Kaiser, J. Staehler, R. Beyer, M. Dressel, L. Baldassarre, D. Nicoletti, A. Perucchi, T. Hasegawa, H. Okamoto, D. Jaksch, A. Cavalleri
Mar 21, 2014
Femtosecond relaxation of photo-excited quasiparticles in the one dimensional Mott insulator ET-F2TCNQ are measured as a function of external pressure, which is used to tune the electronic structure. By fitting the static...
Repulsively induced photon super-bunching in driven resonator arrays
We analyze the non-equilibrium behaviour of driven nonlinear photonic resonator arrays under the selective excitation of specific photonic many-body modes. Targeting the unit-filled ground state, we find a counter-intuitive...
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