Archak
@archakp.bsky.social
Just a garden-variety quantum physicist. Also interested in music.
Assistant Professor in Physics at IIT Hyderabad, India.......will be talking mainly about recent research works....
Assistant Professor in Physics at IIT Hyderabad, India.......will be talking mainly about recent research works....
Introducing "Quantum non-Markovian Hatano-Nelson model": arxiv.org/abs/2511.05328
Perhaps the first exploration of a non-Markovian nonreciprocal quantum lattice, how it arises exactly, and some of its special properties.
[Note: Non-Markovian is generic, Markovian is approximate.]
Perhaps the first exploration of a non-Markovian nonreciprocal quantum lattice, how it arises exactly, and some of its special properties.
[Note: Non-Markovian is generic, Markovian is approximate.]
November 10, 2025 at 2:42 AM
Introducing "Quantum non-Markovian Hatano-Nelson model": arxiv.org/abs/2511.05328
Perhaps the first exploration of a non-Markovian nonreciprocal quantum lattice, how it arises exactly, and some of its special properties.
[Note: Non-Markovian is generic, Markovian is approximate.]
Perhaps the first exploration of a non-Markovian nonreciprocal quantum lattice, how it arises exactly, and some of its special properties.
[Note: Non-Markovian is generic, Markovian is approximate.]
We have now made our recently discovered extreme non-Markovian quantum Mpemba effect doi.org/10.1103/Phys... relevant for quantum impurity model simulations: "Accelerated calculation of impurity Green's functions exploiting the extreme Mpemba effect" arxiv.org/abs/2510.26651
November 9, 2025 at 4:47 AM
We have now made our recently discovered extreme non-Markovian quantum Mpemba effect doi.org/10.1103/Phys... relevant for quantum impurity model simulations: "Accelerated calculation of impurity Green's functions exploiting the extreme Mpemba effect" arxiv.org/abs/2510.26651
While devising tensor network techniques to extract dynamical maps for open quantum non-Markovian systems (doi.org/10.1063/5.02...), we discovered an extreme Non-Markovian quantum Mpemba effect, where an initial state reaches steady-state within the memory time! doi.org/10.1103/Phys...
November 9, 2025 at 4:44 AM
While devising tensor network techniques to extract dynamical maps for open quantum non-Markovian systems (doi.org/10.1063/5.02...), we discovered an extreme Non-Markovian quantum Mpemba effect, where an initial state reaches steady-state within the memory time! doi.org/10.1103/Phys...
2025 started with discovering connection between van-Hove singularities, which are critical points of band structure, and exceptional points of transfer matrices, which are critical points of non-Hermitian matrices, Published in PRB Letters: doi.org/10.1103/Phys...
November 9, 2025 at 4:22 AM
2025 started with discovering connection between van-Hove singularities, which are critical points of band structure, and exceptional points of transfer matrices, which are critical points of non-Hermitian matrices, Published in PRB Letters: doi.org/10.1103/Phys...
New to bluesky. Mainly interested in physics.
November 9, 2025 at 3:55 AM
New to bluesky. Mainly interested in physics.