Emergent Pair Density Wave and Incoherent Metallic State in a Strongly Correlated Doped System
Abstract
We investigate the dynamical emergence of a state driven by the interplay between antiferromagnetism (AFM) and singlet d-wave superconductivity (SC) within a slave-rotor mean-field framework. By decomposing the electron into charge and spin degrees of freedom, the formalism captures strong-correlation effects beyond conventional mean-field approaches. A PDW order is found to emerge dynamically in the coexistence region of AFM and SC. The AFM-SC coexistence region is significantly modified with correlation, leading to a systematic shift of the tetra-critical point. The doping and temperature evolution of the AFM, SC, and PDW order parameters, together with the rotor condensate amplitude ϕ, which characterizes charge coherence, shows a crossover from a coherent to an incoherent metal with the suppression of coherent quasi-particle spectral weight. Moreover, in the AFM + (ϕ≠ 0) region, coherent quasi-particle bands coexist with incoherent Hubbard-like excitations, whereas only incoherent spectral features survive in the AFM + (ϕ= 0) regime. The SC phase exhibits nodal quasi-particles consistent with d-wave pairing.
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BibTeX
@misc{maiti2026emergent,
title = {{Emergent Pair Density Wave and Incoherent Metallic State in a Strongly Correlated Doped System}},
author = {Soham Maiti and Nandan Pakhira and A. Taraphder},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.29742},
eprint = {2608.29742},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.29742},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Emergent Pair Density Wave and Incoherent Metallic State in a Strongly Correlated Doped System
AU - Soham Maiti
AU - Nandan Pakhira
AU - A. Taraphder
PY - 2026
DA - 2026/08/30
PB - arXiv
DO - 10.48550/arxiv.2608.29742
UR - https://arxiv.org/abs/2608.29742
AB - We investigate the dynamical emergence of a state driven by the interplay between antiferromagnetism (AFM) and singlet d-wave superconductivity (SC) within a slave-rotor mean-field framework. By decomposing the electron into charge and spin degrees of freedom, the formalism captures strong-correlation effects beyond conventional mean-field approaches. A PDW order is found to emerge dynamically in the coexistence region of AFM and SC. The AFM-SC coexistence region is significantly modified with correlation, leading to a systematic shift of the tetra-critical point. The doping and temperature evolution of the AFM, SC, and PDW order parameters, together with the rotor condensate amplitude ϕ, which characterizes charge coherence, shows a crossover from a coherent to an incoherent metal with the suppression of coherent quasi-particle spectral weight. Moreover, in the AFM + (ϕ≠ 0) region, coherent quasi-particle bands coexist with incoherent Hubbard-like excitations, whereas only incoherent spectral features survive in the AFM + (ϕ= 0) regime. The SC phase exhibits nodal quasi-particles consistent with d-wave pairing.
ER -