Pseudogap phase and fractionalization: Predictions for Josephson junction setup

Abstract

The pseudogap regime of the underdoped cuprates arguably remains one of the most enigmatic phenomena of correlated quantum matter. Recent theoretical ideas suggest that a pair density wave (PDW) or a "fractionalized PDW" could be a key ingredient for the understanding of the pseudogap physics. These ideas are to be contrasted to the scenario where charge density wave order and superconductivity coexist at low temperatures. In this paper, we present a few tests to compare the two scenarios in a Josephson junction setup. For a PDW scenario, we observe a beat-like structure of AC Josephson current. The additional frequencies for the AC Josephson current appear at the half-odd integer multiple of the standard Josephson frequency. We can extract the modulation wavevector of the PDW state by studying the average Josephson current. Furthermore, the usual sharp Shapiro steps break down. In contrast, these signatures are absent for the simple coexistence of orders. Any detection of such signatures in a similar experimental setup will strongly support the PDW scenario for the pseudogap phase.

arXiv comment16 pages, 10 Figures

References in corpus (43)

• Theory of Intertwined Orders in High Temperature Superconductors
• Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor
• A Four-Unit-Cell Periodic Pattern of Quasiparticle States Surrounding Vortex Cores in Bi2Sr2CaCu2O8+d
• Magnetic-field-induced charge-stripe order in the high temperature superconductor YBa2Cu3Oy
• Competing states in the t-J model: uniform d-wave state versus stripe state
• The Physics of Pair Density Waves
• Charge density wave origin of cuprate checkerboard visualized by scanning tunneling microscopy
• Three-Dimensional Charge Density Wave Order in YBa2Cu3O6.67 at High Magnetic Fields
• Detection of a Cooper-Pair Density Wave in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+x}$
• Inhomogeneity of charge density wave order and quenched disorder in a high Tc superconductor
• Incipient charge order observed by NMR in the normal state of YBa2Cu3Oy
• Quenched disorder and vestigial nematicity in the pseudo-gap regime of the cuprates
• An SU(2) Formulation of the t-J model: Application to Underdoped Cuprates
• Momentum-dependent charge correlations in YBa${}_2$Cu${}_3$O${}_{6+\delta }$ superconductors probed by resonant x-ray scattering: Evidence for three competing phases
• Intertwined vestigial order in quantum materials: nematicity and beyond
• Bond order in two-dimensional metals with antiferromagnetic exchange interactions
• Fluctuating charge density waves in a cuprate superconductor
• Broken translational and rotational symmetry via charge stripe order in underdoped YBCO
• Magnetic field controlled charge density wave coupling in underdoped YBa${}_2$Cu${}_3$O${}_{6+x}$
• Magnetic-field Induced Pair Density Wave State in the Cuprate Vortex Halo
• Visualizing the Energy-gap Modulations of the Cuprate Pair Density Wave State
• Topological order in the pseudogap metal
• Observation of two types of charge density wave orders in superconducting La${}_{2-x}$Sr${}_x$CuO${}_4$
• Pair density wave, charge density wave and vortex in high Tc cuprates
• Intimate link between Charge Density Wave, Pseudogap and Superconducting Energy Scales in Cuprates
• Gauge theory for the cuprates near optimal doping
• Bond order instabilities in a correlated two-dimensional metal
• Nature of Stripes in the Generalized t-J Model Applied to The Cuprate Superconductors
• Quantum oscillations from nodal bilayer magnetic breakdown in the underdoped high temperature superconductor YBa2Cu3O6+x
• Connecting high-field quantum oscillations to zero-field electron spectral functions in the underdoped cuprates
• Interplay between pair-density-wave and charge-density-wave orders in underdoped cuprates
• Nature of the charge-density wave excitations in cuprates
• Fractionalized pair density wave in the pseudo-gap phase of cuprate superconductors
• A Two Energy Gap Preformed-Pair Scenario For the Cuprates: Implications for Angle-Resolved Photoemission Spectroscopy
• Bipartite electronic superstructures in the vortex core of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Incommensurate charge ordered states in the $t-t^{\prime }-J$ model
• Fluctuating orders and quenched randomness in the cuprates
• Signatures of a pair density wave at high magnetic fields in cuprates with charge and spin orders
• Stripe fractionalization II: the quantum spin nematic and the Abrikosov lattice
• Fractionalizing a local pair density wave: a good "recipe" for opening a pseudo-gap
• Emergent superconductivity upon disordering a charge density wave ground state
• Fluctuations and Higgs mechanism in Under-Doped Cuprates: a Review
• Electronic spectral function in fractionalized Pair Density Wave scenario

Cited by in corpus (1)

• Incoherent transport in a model for the strange metal phase: Memory-matrix formalism