Flower-like Micelles of Polyethylene Oxide End-Capped with Cholesterol
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99 GENERAL AND MISCELLANEOUS↗
Engineering topics
Martin, I.
Publications and source records attributed to Martin, I..
Scar states in a system of interacting chiral fermions
Here, we study the nature of many-body eigenstates of a system of interacting chiral spinless fermions on a ring. We find a coexistence of fermionic and bosonic types of eigenstates in parts of the many-body spectrum. Some bosonic eigenstates, native to the strong interaction limit, persist at intermediate and weak couplings, enabling persistent density oscillations in the system, despite it being far from integrability.
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗
Half-Integer Quantized Topological Response in Quasiperiodically Driven Quantum Systems
A spin strongly driven by two harmonic incommensurate drives can pump energy from one drive to the other at a quantized average rate, in close analogy with the quantum Hall effect. The pumping rate is a nonzero integer in the topological regime, while the trivial regime does not pump. The dynamical transition between the regimes is sharp in the zero-frequency limit and is characterized by a Dirac point in a synthetic band structure. We show that the pumping rate is half-integer quantized at the transition and present universal Kibble-Zurek scaling functions for energy transfer processes. Finally, our results adapt ideas from quantum phase transitions, quantum information, and topological band theory to nonequilibrium dynamics, and identify qubit experiments to observe the universal linear and nonlinear response of a Dirac point in synthetic dimensions.
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗