3 papers
cond-mat.quant-gas2025
Ballistic particle transport and Drude weight in gases
Frank Göhmann, Andreas Klümper, Karol K. Kozlowski
Owing to the fact that the particle current operator in non-relativistic gases is proportional to the total momentum operator, the particle transport in such systems is always ball…
cond-mat.stat-mech2025
Chiral eigenbases of the XX and XY quantum spin chains
Xin Zhang, Frank Göhmann, Andreas Klümper +1
We calculate the values of observables in chiral eigenstates of the XX quantum spin chain that were introduced in previous work and compare the form of the result with the respecti…
quant-ph2024
Chiral basis for qubits and spin-helix decay
Vladislav Popkov, Xin Zhang, Frank Göhmann +1
We propose a qubit basis composed of transverse spin helices with kinks. Unlike the usual computational basis, this chiral basis is well suited for describing quantum states with n…