Related papers: The Elusive High-Tc Superinductor

The Elusive High-Tc Superinductor

URL: http://arxiv.org/abs/2209.01342v1
Date: Sat, 3 Sep 2022 06:22:59 GMT
Title: The Elusive High-Tc Superinductor
Authors: Yogesh Kumar Srivastava, Manoj Gupta, Manukumara Manjappa, Piyush Agarwal, J\'er\^ome Lesueur, and Ranjan Singh
Abstract summary: We find giant kinetic inductance in a $high-T_c$ metasurface due to the 1400% expansion of the vortex screening supercurrent. Our discovery presents a new class of $high-T_c$ superconductor electronic, photonic, and quantum devices enabled through metasurface designed at the Pearl length scales.
Score: 0.18472148461613155
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Ginzburg-Landau (GL) parameters formed the basis for Abrikosov discovery of the quantum vortex of a supercurrent in type-II superconductor with a normal core of size $\xi$, the superconductor coherence length and circulating supercurrent induced magnetic field diverging as $log(1/r)$ from the core with a decay length of the London penetration depth, $\lambda_L.$ In 1964, J. Pearl predicted the slowly decaying $(1/r^2)$ field around a vortex spreading out to Pearl length, $P_L=2\lambda_L^2/t$, in a superconductor film of thickness $t < \lambda_L$. However, his quintessential theory failed to predict the existence of giant kinetic inductance (GKI) that arises from the enlarged screening currents of the vortex. Here, we discover giant kinetic inductance in a $high-T_c$ metasurface due to the 1400% expansion of the vortex screening supercurrent from $\lambda_L$ to 14$\lambda_L$ in ultrathin film meta-atom of $\lambda_L/7$ thickness, which leads to the emergence of terahertz superinductance possessing quantum impedance exceeding the resistance quantum limit of $R_Q=h/(2e)^2 =6.47 k\Omega$ by 33%. Our discovery presents a new class of $high-T_c$ superconductor electronic, photonic, and quantum devices enabled through metasurface designed at the Pearl length scales, providing novel applications in quantum circuitry, metrology, and single photon kinetic inductance detectors.

Related papers

Calculations of magnetic field produced by spin-vortex-induced loop currents in Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ thin films using the particle-number conserving Bogoliubov-de Gennes formalism [0.0]
A theory for cuprate superconductivity predicts the existence of nano-sized loop currents called, spin-vortex-induced loop currents (SVILCs)'' We calculate magnetic fields produced by them for a model of Bi$$Sr$$Caapprox SVILCs. The detection of the SVILCs by the magnetic field measurement may bring about the elucidation of the cuprate superconductivity, and may also lead to their quantum device applications.
arXiv Detail & Related papers (2024-03-22T13:03:54Z)
Quantum thermodynamics with a single superconducting vortex [44.99833362998488]
We demonstrate complete control over dynamics of a single superconducting vortex in a nanostructure. Our device allows us to trap the vortex in a field-cooled aluminum nanosquare and expel it on demand with a nanosecond pulse of electrical current.
arXiv Detail & Related papers (2024-02-09T14:16:20Z)
A Quantum Repeater Platform based on Single SiV$^-$ Centers in Diamond with Cavity-Assisted, All-Optical Spin Access and Fast Coherent Driving [45.82374977939355]
Quantum key distribution enables secure communication based on the principles of quantum mechanics. Quantum repeaters are required to establish large-scale quantum networks. We present an efficient spin-photon interface for quantum repeaters.
arXiv Detail & Related papers (2022-10-28T14:33:24Z)
Emergent macroscopic bistability induced by a single superconducting qubit [0.0]
Photon breakdown in a continuously driven cavity QED system has been proposed as a prime example for a first-order driven-dissipative quantum phase transition. In this work we couple a single transmon qubit with a fixed coupling strength $g$ to an in-situ bandwidth $kappa$ tuneable superconducting cavity to controllably approach this thermodynamic limit. Even though the system remains microscopic, we observe its behavior to become more and more macroscopic as a function of $g/kappa$.
arXiv Detail & Related papers (2022-10-25T17:20:54Z)
Quantum density matrix theory for a laser without adiabatic elimination of the population inversion: transition to lasing in the class-B limit [62.997667081978825]
No class-B quantum density-matrix model is available to date, capable of accurately describing coherence and photon correlations within a unified theory. Here we carry out a density-matrix theoretical approach for generic class-B lasers, and provide closed equations for the photonic and atomic reduced density matrix in the Fock basis of photons. This model enables the study of few-photon bifurcations and non-classical photon correlations in class-B laser devices, also leveraging quantum descriptions of coherently coupled nanolaser arrays.
arXiv Detail & Related papers (2022-05-26T16:33:51Z)
Gralmonium: Granular Aluminum Nano-Junction Fluxonium Qubit [0.0]
We show that in a fluxonium qubit the role of the Josephson junction can be played by a lithographically defined, self-structured granular aluminum nano-junction. The measured spectrum of the resulting qubit, which we nickname gralmonium, is indistinguishable from the one of a standard fluxonium qubit.
arXiv Detail & Related papers (2022-02-03T18:59:10Z)
Rapid generation of all-optical $^{39}$K Bose-Einstein condensates using a low-field Feshbach resonance [58.720142291102135]
We investigate the production of all-optical $39$K Bose-Einstein condensates with different scattering lengths using a Feshbach resonance near $33$ G. We are able to produce fully condensed ensembles with $5.8times104$ atoms within $850$ ms evaporation time at a scattering length of $232. Based on our findings we describe routes towards high-flux sources of ultra-cold potassium for inertial sensing.
arXiv Detail & Related papers (2022-01-12T16:39:32Z)
Topological superconductor from superconducting topological surface states and fault-tolerant quantum computing [6.394072140094434]
A widely believed chiral $p$-wave superfluid is the Moore-Read state in the $nu=frac52$ fractional quantum Hall effect. Here we report a new mechanism for realizing 2D chiral $p$-wave superconductors on the surface of 3D $s$-wave superconductors.
arXiv Detail & Related papers (2020-03-26T06:07:06Z)
Bosonic quantum communication across arbitrarily high loss channels [68.58838842613457]
A general attenuator $Phi_lambda, sigma$ is a bosonic quantum channel that acts by combining the input with a fixed environment state. We show that for any arbitrary value of $lambda>0$ there exists a suitable single-mode state $sigma(lambda)$. Our result holds even when we fix an energy constraint at the input of the channel, and implies that quantum communication at a constant rate is possible even in the limit of arbitrarily low transmissivity.
arXiv Detail & Related papers (2020-03-19T16:50:11Z)
Optimal coupling of HoW$_{10}$ molecular magnets to superconducting circuits near spin clock transitions [85.83811987257297]
We study the coupling of pure and magnetically diluted crystals of HoW$_10$ magnetic clusters to microwave superconducting coplanar waveguides. Results show that engineering spin-clock states of molecular systems offers a promising strategy to combine sizeable spin-photon interactions with a sufficient isolation from unwanted magnetic noise sources.
arXiv Detail & Related papers (2019-11-18T11:03:06Z)
Implementation of a transmon qubit using superconducting granular aluminum [0.0]
grAl may provide a robust source of non-linearity for strongly driven quantum circuits. In intrinsic qubit linewidth $gamma = 2 pi times 10,mathrmkHz$, corresponding to a lifetime of $16,mathrmmu s$. This linewidth remains below $2 pi times 150,mathrmkHz$ for in-plane magnetic fields up to $sim70,mathrmmT$.
arXiv Detail & Related papers (2019-11-06T12:18:43Z)

This list is automatically generated from the titles and abstracts of the papers in this site.