Higgs mode mediated enhancement of interlayer transport in high-
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 cuprate superconductors

Homann, Guido; Cosme, Jayson G.; Okamoto, Junichi; Mathey, Ludwig

doi:10.1103/physrevb.103.224503

Cited by 9 publications

(4 citation statements)

References 40 publications

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“…While the non-shaken atom-cavity system can be approximated via the standard two-level Dicke model, the shaking induces the atoms to populate additional states that are modeled via a third state in the three-level Dicke model. We note that the LISR and LESR phases display similarities with light-induced [49] and light-enhanced superconductivity [50], for which mechanisms have been proposed that involve the excitation of auxiliary modes, such as phonons [51][52][53] and Higgs bosons [54], by means of optical pumping. Photoexcitation of the Higgs mode in cuprate superconductors has also been predicted to lead to an incommensurate time crystal [55].…”

Section: Discussionmentioning

confidence: 73%

Parametrically driven-dissipative three-level Dicke model

Skulte,

Kongkhambut,

Keßler

et al. 2021

Preprint

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We investigate the three-level Dicke model, which describes a fundamental class of light-matter systems. We determine the phase diagram in the presence of dissipation, which we assume to derive from photon loss. Utilizing both analytical and numerical methods we characterize incommensurate time crystalline states in this phase diagram, as well as light-induced and light-enhanced superradiant states. As a primary application, we demonstrate that a shaken atom-cavity system is naturally approximated via a parametrically driven open threelevel Dicke model.

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Section: Discussionmentioning

confidence: 73%

Parametrically driven-dissipative three-level Dicke model

Skulte,

Kongkhambut,

Keßler

et al. 2021

Preprint

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“…Here, we give an overview of the semiclassical U(1) lattice gauge theory that we utilize to simulate the dynamics of a parametrically driven SC [23][24][25]. The static part of the Lagrangian is the Ginzburg-Landau free energy [26] on a three-dimensional lattice.…”

Section: Methodsmentioning

confidence: 99%

Parametric control of Meissner screening in light-driven superconductors

2022

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We investigate the Meissner effect in a parametrically driven superconductor using a semiclassical U(1) lattice gauge theory. Specifically, we periodically drive the z-axis tunneling, which leads to an enhancement of the imaginary part of the z-axis conductivity at low frequencies if the driving frequency is blue-detuned from the plasma frequency. This has been proposed as a possible mechanism for light-enhanced interlayer transport in YBa2C3O7-δ (YBCO). In contrast to this enhancement of the conductivity, we find that the screening of magnetic fields is less effective than in equilibrium for blue-detuned driving, while it displays a tendency to be enhanced for red-detuned driving.

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“…Particle-hole symmetry is realised in Lorentz invariant theories such as the standard model of elementary physics [1], low energy effective models close to quantum criticality [2], and the famous Bardeen-Cooper-Schrieffer (BCS) theory of superconductivity [3,4], note [5]. We note that the order parameter dynamics of high-T c superconductors can be described by an effective particle-hole symmetric theory, which allows for exploring the dynamics of the Higgs/amplitude mode [6][7][8][9]. Similarly, in ultracold neutral atoms the emergence of an effective particle-hole symmetry has been confirmed experimentally [10,11].…”

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confidence: 99%

“…where K 1,2 determine the time dependence, µ is the square root of the gap energy, which has the dimensions of a mass term, g is the contact interaction strength and V ext is the externally applied potential. We include a Lagrange multiplier µ Q to fix the Klein-Gordon charge (7), see below. By setting K 2 = 0 and K 1 = 1 and µ Q = 0, we recover the GP equation…”

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confidence: 99%

Vortex and soliton dynamics in particle-hole symmetric superfluids

Skulte,

Broers,

Cosme

et al. 2021

Preprint

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We propose to induce topological defects in particle-hole symmetric superfluids, with the prime example of the BCS state of ultracold atoms and detect their time evolution and decay. We demonstrate that the time evolution is qualitatively distinct for particle-hole symmetric superfluids, and point out that the dynamics of topological defects is strongly modified in particle-hole symmetric fluids. We obtain results for different charges and compare them with the standard Gross-Pitaevskii prediction for Bose-Einstein condensates. We highlight the observable signatures of the particle-hole symmetry in the dynamics of decaying solitons and subsequent vortices.

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Higgs mode mediated enhancement of interlayer transport in high- Tc cuprate superconductors

Cited by 9 publications

References 40 publications

Parametrically driven-dissipative three-level Dicke model

Parametrically driven-dissipative three-level Dicke model

Parametric control of Meissner screening in light-driven superconductors

Vortex and soliton dynamics in particle-hole symmetric superfluids

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