Direct detection of odd-frequency superconductivity via time- and angle-resolved photoelectron fluctuation spectroscopy

Abstract

We propose a measurement scheme to directly detect odd-frequency superconductivity via time- and angle-resolved photoelectron fluctuation spectroscopy. The scheme includes two consecutive, non-overlapping probe pulses applied to a superconducting sample. The photoemitted electrons are collected in a momentum-resolved fashion. Correlations between signals with opposite momenta are analyzed. Remarkably, these correlations are directly proportional to the absolute square of the time-ordered anomalous Green's function of the superconductor. This setup allows for the direct detection of the "hidden order parameter" of odd-frequency pairing. We illustrate this general scheme by analyzing the signal for the prototypical case of a two-band superconductor.

References in corpus (33)

• Odd Triplet Superconductivity and Related Phenomena in Superconductor-Ferromagnet Structures
• Symmetry and Topology in Superconductors - Odd-frequency pairing and edge states -
• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Observation of spin-triplet superconductivity in Co-based Josephson Junctions
• Nonthermal pathways to ultrafast control in quantum materials
• Observation of broken time-reversal symmetry in the heavy fermion superconductor UPt${}_3$
• Odd-frequency superconductivity
• High-resolution photoemission on Sr2RuO4 reveals correlation-enhanced effective spin-orbit coupling and dominantly local self-energies
• Possible Realization of Odd Frequency Pairing in Heavy Fermion Compounds
• Realization of odd-frequency p-wave spin-singlet superconductivity coexisting with antiferromagnetic order near quantum critical point
• Intrinsic Paramagnetic Meissner Effect due to s-wave Odd-Frequency Superconductivity
• Odd-frequency superconducting pairing in one-dimensional systems
• Time- and momentum-resolved photoemission studies using time-of-flight momentum microscopy at a free-electron laser
• Orbital selective pairing and superconductivity in iron selenides
• Orbital selectivity and emergent superconducting state from quasi-degenerate $s-$ and $d-$wave pairing channels in iron-based superconductors
• Odd-frequency superconductivity in Sr${}_2$RuO${}_4$ measured by Kerr rotation
• Conductance signatures of odd-frequency superconductivity in quantum spin Hall systems using a quantum point contact
• Reflections on the One Dimensional Realization of Odd-Frequency Pairing
• Odd-frequency pair in topological superconductivity of 1D magnetic chain
• The Majorana STM as a perfect detector of odd-frequency superconductivity
• Unveiling odd-frequency pairing around a magnetic impurity in a superconductor
• Odd-frequency pairing and Kerr effect in the heavy-fermion superconductor UPt${}_3$
• Odd-frequency pairing and proximity effect in Kitaev chain systems including topological critical point
• Odd-frequency superconductivity and Meissner effect in the doped topological insulator Bi${}_2$Se${}_3$
• Intrinsic ac anomalous Hall effect of nonsymmorphic chiral superconductors with an application to $\mathrm{UP}{\mathrm{t}}_3$
• Highly tunable time-reversal-invariant topological superconductivity in topological insulator thin films
• Signature of odd-frequency equal-spin triplet pairing in the Josephson current on the surface of Weyl nodal loop semimetals
• Finite bulk Josephson currents and chirality blockade removal from inter-orbital pairing in magnetic Weyl semimetals
• Noise Correlations in time- and angular-resolved photoemission spectroscopy
• Dia- and paramagnetic Meissner effect from odd-frequency pairing in multi-orbital superconductors
• Large Josephson current in Weyl nodal loop semimetals due to odd-frequency superconductivity
• Odd-frequency superconductivity in dilute magnetic superconductors
• Signatures of odd-frequency pairing in the Josephson junction current noise

Cited by in corpus (5)

• Phase-tunable electron transport assisted by odd-frequency Cooper pairs in topological Josephson junctions
• Signature of PT-symmetric non-Hermitian superconductivity in angle-resolved photoelectron fluctuation spectroscopy
• Quasiparticle interference as a direct experimental probe of bulk odd-frequency superconducting pairing
• Odd-frequency superfluidity from a particle-number-conserving perspective
• Identification of odd-frequency superconducting pairing in Josephson junctions