E. Babaev

collaborators

5 papers

cond-mat.supr-con2026

Demonstration of a fermion Quadrupling Condensate via Quantum Monte Carlo Simulation

Alexandru Golic, Egor Babaev, Johan CarlstrÃ¶m

Fermionic condensation typically occurs via pairing. In recent decades, however, a fundamental question has emerged: whether alternative forms of order exist, such as condensates o…

cond-mat.supr-con2026

Revisiting vestigial order in nematic superconductors: gauge-field mechanisms and model constraints

Ilaria Maccari, Egor Babaev, Johan CarlstrÃ¶m

An electronic nematic order that originates from superconducting fluctuation but persists above the superconducting transition temperature is often referred to as a vestigial nemat…

cond-mat.supr-con2025

Ultrasound evidence for multicomponent superconducting order parameter in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ with electron quadrupling phase

Chris Halcrow, Ilya Shipulin, Federico Caglieris +6

Experiments have pointed to the formation of the electron quadrupling condensate in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ at $x \sim 0.8$ . The state spontaneously breaks time-reversal symmet…

cond-mat.supr-con2025

Hund's coupling assisted orbital-selective superconductivity in Ba1-xKxFe2As2

Elena Corbae, Rong Zhang, Cong Li +10

While the superconducting transition temperature of hole-doped Ba_{1-x}K_{x}Fe_{2}As_{2} decreases past optimal doping, superconductivity does not completely disappear even for the…

cond-mat.supr-con2025

Evidence of pseudogap and absence of spin magnetism in the time-reversal-symmetry-breaking state of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$

Florian BÃ¤rtl, Nadia Stegani, Federico Caglieris +13

Muon-spin-rotation ( $I^¼$ SR) experiments and the observation of a spontaneous Nernst effect indicate time-reversal symmetry breaking (BTRS) at $T_{c}^{Z2}$ above the superco…

Demonstration of a fermion Quadrupling Condensate via Quantum Monte Carlo Simulation

Revisiting vestigial order in nematic superconductors: gauge-field mechanisms and model constraints

Ultrasound evidence for multicomponent superconducting order parameter in Ba1−x​Kx​Fe2​As2​ with electron quadrupling phase

Hund's coupling assisted orbital-selective superconductivity in Ba1-xKxFe2As2

Evidence of pseudogap and absence of spin magnetism in the time-reversal-symmetry-breaking state of Ba1−x​Kx​Fe2​As2​

Ultrasound evidence for multicomponent superconducting order parameter in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ with electron quadrupling phase

Evidence of pseudogap and absence of spin magnetism in the time-reversal-symmetry-breaking state of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$