3 papers
quant-ph2025
Classical analog circuit emulation of quantum Grover search algorithm
Samuel Feldman, Hassam Ghazali, Andrey Rogachev
We construct a completely analog framework that emulates universal quantum gates and quantum algorithms. It is based on electronic circuits made of operational amplifiers, resistor…
cond-mat.supr-con2025
Microscopic scales and mechanism of quantum phase transitions in two-dimensional superconducting systems
Andrey Rogachev, Samuel Feldman, Kevin Davenport
The superconducting ground state in many two-dimensional materials can be created or destroyed through quantum phase transitions (QPTs) controlled by non-thermal parameters such as…
cond-mat.supr-con2024
Quantum phase transition in small-size 1d and 2d Josephson junction arrays: analysis of the experiments within the interacting plasmons picture
Samuel Feldman, Andrey Rogachev
Theoretically, Josephson junction (JJ) arrays can exhibit either a superconducting or insulating state, separated by a quantum phase transition (QPT). In this work, we analyzed pub…