Quantum electrodynamics ≈ Quantum electrodynamics
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Circuit quantum electrodynamics Open
Quantum mechanical effects at the macroscopic level were first explored in\nJosephson junction-based superconducting circuits in the 1980's. In the last\ntwenty years, the emergence of quantum information science has intensified\nresearch …
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Quarks, Gluons and Lattices Open
This book introduces the lattice approach to quantum field theory. The spectacular successes of this technique include compelling evidence that exchange of gauge gluons can confine the quarks within subnuclear matter. The lattice framework…
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Soft Hair on Black Holes Open
It has recently been shown that Bondi-van der Burg-Metzner-Sachs supertranslation symmetries imply an infinite number of conservation laws for all gravitational theories in asymptotically Minkowskian spacetimes. These laws require black ho…
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Dissipation Bounds All Steady-State Current Fluctuations Open
Near equilibrium, small current fluctuations are described by a Gaussian distribution with a linear-response variance regulated by the dissipation. Here, we demonstrate that dissipation still plays a dominant role in structuring large fluc…
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Atoms and molecules in cavities, from weak to strong coupling in quantum-electrodynamics (QED) chemistry Open
Significance Traditionally, quantum chemistry investigates molecular systems assuming that the photon field, which leads to the interaction of charged particles, is well approximated by the Coulomb interaction. On the other hand, quantum o…
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Five-Loop Running of the QCD Coupling Constant Open
We analytically compute the five-loop term in the beta function which governs the running of α_{s}-the quark-gluon coupling constant in QCD. The new term leads to a reduction of the theory uncertainty in α_{s} taken at the Z-boson scale as…
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Semianalytic calculation of gravitational wave spectrum nonlinearly induced from primordial curvature perturbations Open
Whether or not the primordial gravitational wave (GW) produced during\ninflation is sufficiently strong to be observable, GWs are necessarily produced\nfrom the primordial curvature perturbations in the second order of\nperturbation. The i…
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APS Medal for Exceptional Achievement in Research: Invited article on entanglement properties of quantum field theory Open
These are notes on some entanglement properties of quantum field theory, aiming to make accessible a variety of ideas that are known in the literature. The main goal is to explain how to deal with entanglement when -- as in quantum field t…
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Applying Bayesian parameter estimation to relativistic heavy-ion collisions: Simultaneous characterization of the initial state and quark-gluon plasma medium Open
We quantitatively estimate properties of the quark-gluon plasma created in\nultra-relativistic heavy-ion collisions utilizing Bayesian statistics and a\nmulti-parameter model-to-data comparison. The study is performed using a\nrecently dev…
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Theory of the Anomalous Magnetic Moment of the Electron Open
The anomalous magnetic moment of the electron a e measured in a Penning trap occupies a unique position among high precision measurements of physical constants in the sense that it can be compared directly with the theoretical calculation …
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Observation of Attractive and Repulsive Polarons in a Bose-Einstein Condensate Open
The problem of an impurity particle moving through a bosonic medium plays a fundamental role in physics. However, the canonical scenario of a mobile impurity immersed in a Bose-Einstein condensate (BEC) has not yet been realized. Here, we …
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Amplitudes, observables, and classical scattering Open
A bstract We present a formalism for computing classically measurable quantities directly from on-shell quantum scattering amplitudes. We discuss the ingredients needed for obtaining the classical result, and show how to set up the calcula…
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Nuclear effective field theory: Status and perspectives Open
The nuclear-physics landscape has been redesigned as a sequence of effective field theories (EFTs) connected to the standard model through symmetries and lattice simulations of quantum chromodynamics (QCD). EFTs in this sequence are expans…
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Science with the space-based interferometer LISA. IV: probing inflation with gravitational waves Open
We investigate the potential for the LISA space-based interferometer to detect the stochastic gravitational wave background produced from different mechanisms during in ation. Focusing on well-motivated scenarios, we study the resulting co…
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From Scattering Amplitudes to Classical Potentials in the Post-Minkowskian Expansion Open
We combine tools from effective field theory and generalized unitarity to construct a map between on-shell scattering amplitudes and the classical potential for interacting spinless particles. For general relativity, we obtain analytic exp…
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Soliton bursts and deterministic dissipative Kerr soliton generation in auxiliary-assisted microcavities Open
Dissipative Kerr solitons in resonant frequency combs offer a promising route for ultrafast mode-locking, precision spectroscopy and time-frequency standards. The dynamics for the dissipative soliton generation, however, are intrinsically …
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Quantized Faraday and Kerr rotation and axion electrodynamics of a 3D topological insulator Open
Time-domain terahertz polarimetry is used to measure the fine-structure constant in the solid state.
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Valley-contrasting physics in all-dielectric photonic crystals: Orbital angular momentum and topological propagation Open
Valley, as a degree of freedom, has been exploited to realize\nvalley-selective Hall transport and circular dichroism in two-dimensional\nlayered materials. On the other hand, orbital angular momentum of light with\nhelical phase distribut…
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Advances in QED with intense background fields Open
Upcoming and planned experiments combining increasingly intense lasers and energetic\nparticle beams will access new regimes of nonlinear, relativistic, quantum effects. This\nimproved experimental capability has driven substantial progres…
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Chiral Anomaly as the Origin of the Planar Hall Effect in Weyl Semimetals Open
In condensed matter physics, the term "chiral anomaly" implies the violation of the separate number conservation laws of Weyl fermions of different chiralities in the presence of parallel electric and magnetic fields. One effect of the chi…
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Brillouin-Wigner theory for high-frequency expansion in periodically driven systems: Application to Floquet topological insulators Open
We construct a systematic high-frequency expansion for periodically driven quantum systems based on the Brillouin-Wigner (BW) perturbation theory, which generates an effective Hamiltonian on the projected zero-photon subspace in the Floque…
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Production of photons in relativistic heavy-ion collisions Open
In this work it is shown that the use of a hydrodynamical model of heavy-ion collisions which incorporates recent developments, together with updated photon emission rates, greatly improves agreement with both ALICE and PHENIX measurements…
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Hubbard parameters from density-functional perturbation theory Open
We present a transparent and computationally efficient approach for the first-principles calculation of Hubbard parameters from linear-response theory. This approach is based on density-functional perturbation theory and the use of monochr…
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Erratum: Is the Gravitational-Wave Ringdown a Probe of the Event Horizon? [Phys. Rev. Lett.<b>116</b>, 171101 (2016)] Open
This corrects the article DOI: 10.1103/PhysRevLett.116.171101.
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Magnon Kerr effect in a strongly coupled cavity-magnon system Open
We experimentally demonstrate magnon Kerr effect in a cavity-magnon system, where magnons in a small yttrium iron garnet (YIG) sphere are strongly but dispersively coupled to the photons in a three-dimensional cavity. When the YIG sphere i…
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Level Attraction Due to Dissipative Magnon-Photon Coupling Open
We report dissipative magnon-photon coupling caused by the cavity Lenz effect, where the magnons in a magnet induce a rf current in the cavity, leading to a cavity backaction that impedes the magnetization dynamics. This effect is revealed…
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Event-by-event fluctuations in a perturbative QCD + saturation + hydrodynamics model: Determining QCD matter shear viscosity in ultrarelativistic heavy-ion collisions Open
We introduce an event-by-event perturbative-QCD + saturation + hydro ("EKRT") framework for ultrarelativistic heavy-ion collisions, where we compute the produced fluctuating QCD-matter energy densities from next-to-leading-order perturbati…
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On the maximal strength of a first-order electroweak phase transition and its gravitational wave signal Open
What is the maximum possible strength of a first-order electroweak phase\ntransition and the resulting gravitational wave (GW) signal? While naively one\nmight expect that supercooling could increase the strength of the transition to\nvery…
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Galaxy formation with BECDM – I. Turbulence and relaxation of idealized haloes Open
We present a theoretical analysis of some unexplored aspects of relaxed Bose-Einstein condensate dark matter (BECDM) haloes. This type of ultralight bosonic scalar field dark matter is a viable alternative to the standard cold dark matter …
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Simulations of solitonic core mergers in ultralight axion dark matter cosmologies Open
Using three-dimensional simulations, we study the dynamics and final\nstructure of merging solitonic cores predicted to form in ultra-light axion\ndark matter halos. The classical, Newtonian equations of motion of a\nself-gravitating scala…