From tunneling to photoemission: correlating two spaces

TL;DR

This paper proposes a method to unify tunneling and photoemission spectroscopies by applying phase retrieval algorithms to tunneling data, enabling direct comparison of quasiparticle distributions in reciprocal space.

Contribution

It introduces a novel approach to correlate tunneling and photoemission data using phase retrieval, bridging two key spectroscopic techniques in condensed matter physics.

Findings

Successful recovery of quasiparticle spectral weight distribution

Potential to address space/time inhomogeneities in correlated systems

Unification of tunneling and photoemission measurements

Abstract

Correlating the data measured by tunneling and photoemission spectroscopies is a long-standing problem in condensed matter physics. The quasiparticle interference, recently discovered in high-Tc cuprates, reveals a possibility to solve this problem. Application of modern phase retrieval algorithms to Fourier transformed tunneling data allows to recover the distribution of the quasiparticle spectral weight in the reciprocal space of solids measured directly by photoemission. This opens a direct way to unify these two powerful techniques and may help to solve a number of problems related with space/time inhomogeneities predicted in strongly correlated electron systems.