77 citations · 743 across the 35 of their papers we have counts for
4 papers · 2 filters
Trotter Errors and the Emergence of Chaos in Quantum Simulation
Kevin W. Kuper, Jon P. Pajaud, Karthik Chinni +2
As noisy intermediate-scale quantum (NISQ) processors increase in size and complexity, their use as general purpose quantum simulators will rely on algorithms based on the Trotter-…
Phase space geometry and optimal state preparation in quantum metrology with collective spins
Manuel H. Muñoz-Arias, Ivan H. Deutsch, Pablo M. Poggi
We revisit well-known protocols in quantum metrology using collective spins and propose a unifying picture for optimal state preparation based on a semiclassical description in pha…
Scrambling and quantum chaos indicators from long-time properties of operator distributions
Sivaprasad Omanakuttan, Karthik Chinni, Philip Daniel Blocher +1
Scrambling is a key concept in the analysis of nonequilibrium properties of quantum many-body systems. Most studies focus on its characterization via out-of-time-ordered correlatio…
Floquet time crystals in driven spin systems with all-to-all -body interactions
Manuel H. Muñoz-Arias, Karthik Chinni, Pablo M. Poggi
We show the emergence of Floquet time crystal (FTC) phases in the Floquet dynamics of periodically driven -spin models, which describe a collection of spin-1/2 particles with al…