Today's #arXivsummary: https://arxiv.org/abs/2309.03946 by Du et. al. Authors introduce a "nonlinear Lifshitz photon theory"; an interacting theory of a U(1) gauge boson w/quadratic dispersion relation. Interaction terms in theory lead to the decay of the Lifshitz photon. #CondMat #arXiv_2309_03946

Today's #arXivsummary: https://arxiv.org/abs/2309.02483 by Gavensky et. al. Authors use Streda's formula to derive an expression for the many-body Chern number in terms of the single-particle interacting Green's function. Topological invariant may be split into two components; one component connected to Luttinger's theorem. #CondMat #arXiv_2309_02483

Today's #arXivsummary: https://arxiv.org/abs/2309.00679 by Yamase et. al. Authors look into the possibility of a superconducting mechanism from spin fluctuations in an Eliashberg framework. Superconducting tendency suppressed substantially by negligible contribution from a small momentum transfer far away from (pi,pi). #CondMat #arXiv_2309_00679

Today's #arXivsummary: https://arxiv.org/abs/2308.13597 by Athanasiou et. al. Authors propose protocols to realize Thouless pumping in electrically tunable Josephson junction arrays modeling Rice-Mele and Harper-Hofstadter pumping. Long-time behavior of controllable superconducting island chains explored numerically. #CondMat #arXiv_2308_13597

Today's #arXivsummary: https://arxiv.org/abs/2308.13005 by @physicssteve & @jenseisert. Authors combine continuous unitary flow techniques with the method of scrambling transforms to facilitate the simulation of non-equilibrium dynamics of two-dimensional quantum systems. Applicable to intermediate-scale time evolution. #CondMat #arXiv_2308_13005

Today's #arXivsummary: https://arxiv.org/abs/2308.12040 by Kumar et. al. Authors propose a digital-analog quantum algorithm for simulating the Hubbard-Holstein model. Reduction in circuit depth of the digital-analog quantum computing algorithm outperforms a purely digital approach. #CondMat #arXiv_2308_12040

Today's #arXivsummary: https://arxiv.org/abs/2308.11010 by Mirmojarabian et. al. Authors map the ground state phase diagram of the isotropic Kekulé-Kitaev model on the honeycomb lattice with Heisenberg exchange couplings. Two plaquette valance bond solid phases with vanishing magnetic order found, in addition to quantum spin liquid and conventional magnetically ordered phases. #CondMat #arXiv_2308_11010

Today's #arXivsummary: https://arxiv.org/abs/2308.09745 by Kim & Polkovnikov. Authors consider the interplay between integrability and quantum chaos in two generic models of spin chains that are parameterized by two independent couplings. It is expected that generic systems will dynamically self-tune themselves to integrable or nearly integrable regimes. #CondMat #arXiv_2308_09745

Today's #arXivsummary: https://arxiv.org/abs/2308.09161 by Fruhling et. al. Authors perform a comprehensive study of the magnetocaloric effect (MCE) in a family of kagome magnets. Enhancing the MCE in tunable magnetic materials with a small rare-earth content discussed. #CondMat #arXiv_2308_09161

Today's #arXivsummary: https://arxiv.org/abs/2308.08248 by Peotta et. al. Authors review the theoretical description of the role of quantum geometry in superfluidity and superconductivity of multiband systems. Basic quantum geometric quantities and the concept of superfluid density discussed in depth. #CondMat #arXiv_2308_08248

Today's #arXivsummary: https://arxiv.org/abs/2308.07376 by Pal et. al. Authors find unique signatures of topologically protected Bogoliubov-Fermi surfaces in normal metal/TRS broken d-wave SC through the lens of a differential conductance and Fano factor. Anomalous behavior of zero-bias conductance suggested. #CondMat #arXiv_2308_07376

Today's #arXivsummary: https://arxiv.org/abs/2308.06771 by Jiang et. al. Authors theoretically study the electronic properties and superconductivity in La3Ni2O7 under pressure due to strong electron correlation. Pairing is induced in the symmetric bands due to spin-orbital exchange coupling between the block-diagonal symmetric and antisymmetric sectors. #CondMat #arXiv_2308_06771

Today's #arXivsummary: https://arxiv.org/abs/2308.05791 by Dzero et. al. Authors study the effects of quantum fluctuations on transport properties of multiband SCs near the pair-breaking QCP. Sign of conductivity correction depends on how quantum critical point is approached in the phase diagram. #CondMat #arXiv_2308_05791

Today's #arXivsummary: https://arxiv.org/abs/2308.05285 by Park & Hwang. Authors investigate the temperature- & frequency-dependent optical scattering rates in the pseudogap phase of cuprates via model pseudogap and electron-boson spectral density (EBSD) functions. Fermi liquid-like behavior may be understood by combining contribution from T-dependent EBSD function and the T-dependent pseudogap. #CondMat #arXiv_2308_05285

Today's #arXivsummary: https://arxiv.org/abs/2308.04484 by McClarty & Rau. Authors develop a Landau theory of altermagnets. Example considered in the context of spin-symmetric time odd multipolar order parameters; generalization to noncolinear behavior discussed. #CondMat #arXiv_2308_04484

Today's #arXivsummary: https://arxiv.org/abs/2308.03074 by Luo et. al. Authors utilize the Becchi-Rouet-Stora-Tyutin (BRST) method to quantize a t-J model in a U(1) gauge slave boson representation. Electron distribution & spectral function calculated; non-Fermi liquid behavior agrees with ARPES measurements. #CondMat #arXiv_2308_03074

Today's #arXivsummary: https://arxiv.org/abs/2308.01932 by Shams et. al. Authors predict the critical temperatures of a class of superconductors by using a stacking machine learning approach in order to train itself on the characteristics of superconductive materials. #CondMat #arXiv_2308_01932

Today's #arXivsummary: https://arxiv.org/abs/2308.01711 by Koyama & Nasu. Authors investigate elementary excitations at finite temperature in a localized electron model applicable to quantum spin models and Kugel-Khomskii models. Method developed which calculates the excitation spectra with the quasiparticle damping at finite temperatures. Applied to the Kitaev model under magnetic fields. #CondMat #arXiv_2308_01711

Today's #arXivsummary: https://arxiv.org/abs/2308.00760 by Noh. Authors show that the Majorana fermion mass and topological quantum phase transition in the Kitaev quantum spin liquid may be manipulated via electric fields. Universal phase diagrams found with electric and magnetic fields. Experimental signatures discussed. #CondMat #arXiv_2308_00760

Today's #arXivsummary: https://arxiv.org/abs/2308.00248 by Wei et. al. Authors show that gapless superconductivity emerges when an s-wave superconductor is placed near an altermagnet, assuming no spin-orbit coupling and no in-plane magnetic field. Rashba spin-orbit interaction turns the system superconducting. #CondMat #arXiv_2308_00248