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quant-ph2026
Dynamical qubit cooling via quasi-particle transport
Kyle Monkman, Jasmin Bedow
Cooling a quantum state presents a challenge as the external control in active protocols can induce detrimental heating in the system. Passive cooling processes offer a valuable al…
cond-mat.str-el2026
Interaction-mediated Co-existence of Altermagnetism and Topology
Jasmin Bedow, Nitin Kaushal, Marcel Franz
We study an extended Hubbard model on Lieb lattice at electron filling 2 and 4, and demonstrate that the interactions lead to the simultaneous emergence of altermagnetic order and…
cond-mat.str-el2026
Topological Altermagnetic Insulators
Jasmin Bedow, Nitin Kaushal, Marcel Franz
We study the emergence of altermagnetic topological phases stabilized by Ising spin-orbit coupling in a prototypical Lieb lattice model of a correlated altermagnet. Treating the el…