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Moment method and continued fraction expansion in Floquet operator Krylov space
Recursion methods such as Krylov techniques map complex dynamics to an effective noninteracting problem in one dimension. For example, the operator Krylov space for Floquet dynamics can be mapped to the dynamics of an edge operator of the one-dimensional Floquet inhomogeneous transverse field Ising model (ITFIM), where the latter, after a Jordan-Wigner transformation, is a Floquet model of noninteracting Majorana fermions and the couplings correspond to Krylov angles. We present an application of this showing that a moment method exists where given an autocorrelation function, one can construct the corresponding Krylov angles and from that the corresponding Floquet ITFIM. Consequently, when no solutions for the Krylov angles are obtained, it indicates that the autocorrelation is not generated by unitary dynamics. We highlight this by studying certain special cases: stable m-period dynamics derived using the method of continued fractions, exponentially decaying, and power-law decaying stroboscopic dynamics. Remarkably, our examples of stable m-period dynamics correspond to m-period edge modes for the Floquet ITFIM where, deep in the chain, the couplings correspond to a critical phase. Furthermore our results pave the way to engineer Floquet systems with desired properties of edge modes and also provide examples of persistent edge modes in gapless Floquet systems.
Improved many-body expansions from eigenvector continuation
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Overview of symmetric nuclear matter properties from chiral interactions up to fourth order of the chiral expansion
We present and discuss predictions for a cross section of bulk and single-particle properties in symmetric nuclear matter based on recent high-quality nucleon-nucleon potentials at N 3 LO and including all subleading three-nucleon forces. We begin with the equation of state and its saturation properties and proceed to the single-nucleon potential. We also explore short-range correlations as seen through the defect function. The various predictions which we present have a common foundation in an internally consistent ab initio approach.
Far-off-equilibrium expansion trajectories in the QCD phase diagram
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Update on splitting of lifetimes of c and b hyperons within the heavy quark expansion and decays Ξ Q → Λ Q π
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Critical point signatures in the cluster expansion in fugacities
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Heavy quark expansion for heavy-light light-cone operators
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d > 2 stress-tensor operator product expansion near a line
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Parton physics from a heavy-quark operator product expansion: Formalism and Wilson coefficients
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Ab initio coupling of jets to collective flow in the opacity expansion approach
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Evolution of decaying particles and decay products in various scenarios for the future expansion of the Universe
We examine nonrelativistic particles that decay into relativistic products in big rip, little rip, and pseudorip models for the future evolution of the Universe. In contrast to decays that occur in standard ΛCDM, the evolution of the ratio r of the energy density of the relativistic decay products to the energy density of the initially decaying particles can decrease with time in all of these models. In big rip and little rip models, r always goes to zero asymptotically, while this ratio evolves to infinity or a constant in pseudorip models.
Conformal block expansion in celestial CFT
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Analytical structure of the equation of state at finite density: Resummation versus expansion in a low energy model
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Parton physics from a heavy-quark operator product expansion: Lattice QCD calculation of the second moment of the pion distribution amplitude
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