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Title: Angle-resolved pair photoemission theory for correlated electrons

Journal Article · · Physical Review. B
ORCiD logo [1];  [2];  [3];  [4];  [4];  [5];  [6];  [6];  [1]
  1. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES); Stanford University, CA (United States)
  2. University of Pennsylvania, Philadelphia, PA (United States)
  3. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
  4. University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Materials Sciences Division
  5. University of Illinois, Chicago, IL (United States)
  6. University of Illinois at Urbana-Champaign, IL (United States)
+ Show Author Affiliations

Here in this paper we consider the possibility and conditions for pair photoemission whereby two incident photons emit pairs of electrons from a candidate material as a novel method to measure and visualize electronic correlations. As opposed to double photoemission - where a single photon precipitates the ejection of a pair electrons via a subsequent electron energy loss scattering process - we show that pair photoemission need not be limited to interference between initial photoelectrons and valence electrons, and moreover, can occur without the energy penalty of two work functions. This enables detection of pairs of electrons at high energy resolution that may be correlated in the same quantum many-body states.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-76SF00515; AC02-05-CH11231
OSTI ID:
2328191
Alternate ID(s):
OSTI ID: 2202892
Journal Information:
Physical Review. B, Vol. 108, Issue 16; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Pairing in the two-dimensional Hubbard model: An exact diagonalization study journal May 1988
Angle-resolved photoemission studies of quantum materials journal May 2021
Resonant inelastic x-ray scattering studies of elementary excitations journal June 2011
Improved finite-lattice estimates of the properties of two quantum spin models on the infinite square lattice journal September 1999
Spectroscopy of the Electron-Electron Interaction in Solids journal August 2002
Evaluation of the BCS approximation for the attractive Hubbard model in one dimension journal January 1997

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
quantum many-body systems
strongly correlated systems
angle-resolved photoemission spectroscopy