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Title: Probing strong correlations with light scattering: Example of the quantum Ising model

Journal Article · · Physical Review B
 [1];  [2];  [3]
  1. Yerevan Physics Inst., Yerevan (Armenia); Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte (Brazil)
  2. Free University of Berlin, Berlin (Germany). Inst. for Theoretical Physics
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.

In this article we calculate the nonlinear susceptibility and the resonant Raman cross section for the paramagnetic phase of the ferromagnetic quantum Ising model in one dimension. In this region the spectrum of the Ising model has a gap m. The Raman cross section has a strong singularity when the energy of the outgoing photon is at the spectral gap ωf ≈ m and a square root threshold when the frequency difference between the incident and outgoing photons ωi₋ωf≈2m. Finally, the latter feature reflects the fermionic nature of the Ising model excitations.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; AC02-98CH10886
OSTI ID:
1336169
Alternate ID(s):
OSTI ID: 1330485
Report Number(s):
BNL-113143-2016-JA; PRBMDO; R&D Project: PO015
Journal Information:
Physical Review B, Vol. 94, Issue 15; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

References (19)

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Electronic Raman scattering in correlated materials: A treatment of nonresonant, mixed, and resonant scattering using dynamical mean-field theory journal January 2005
Heat capacity peak at the quantum critical point of the transverse Ising magnet CoNb2O6 journal July 2015
The Quantum Theory of Dispersion journal May 1927
Exact form factors in integrable quantum field theories: the scaling -Ising model journal February 2006
Multidimensional pump-probe spectroscopy with entangled twin-photon states journal June 2009
The intrinsic coupling in integrable quantum field theories journal September 2000
Optical multidimensional coherent spectroscopy journal July 2013
Hierarchy of Bound States in the One-Dimensional Ferromagnetic Ising Chain CoNb 2 O 6 Investigated by High-Resolution Time-Domain Terahertz Spectroscopy journal April 2014
Ferromagnetic Exchange Anisotropy from Antiferromagnetic Superexchange in the Mixed 3 d 5 d Transition-Metal Compound Sr 3 CuIrO 6 journal August 2013
Construction of Green's functions from an exact S matrix journal April 1979
Exact form factors in integrable quantum field theories: the sine-Gordon model (II) journal January 2002
Über die Streuung von Strahlung durch Atome journal February 1925
Theory of Raman scattering in Mott-Hubbard systems journal August 1990
Correlation Functions of Integrable 2d Models of the Relativistic Field Theory: Ising Model journal August 1991
Relationship between Third-Order Nonlinear Optical Properties and Magnetic Interactions in Open-Shell Systems: A New Paradigm for Nonlinear Optics journal July 2007
Complete S-matrix of the massive thirring model journal November 1977

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