113 citations · 388 across the 26 of their papers we have counts for
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Superconducting qubits beyond the dispersive regime
Mohammad H. Ansari
Superconducting circuits consisting of a few low-anharmonic transmons coupled to readout and bus resonators can perform basic quantum computations. Since the number of qubits in su…
Entropy Production in Quantum Is Different
Mohammad H. Ansari, Alwin van Steensel, Yuli V. Nazarov
Currently, 'time' does not play any essential role in quantum information theory. In this sense, quantum information theory is underdeveloped similarly to how quantum physics was u…
Exact quantization of superconducting circuits
Mohammad H. Ansari
We present a theoretical description for circuits consisting of weak anharmonic qubits coupled to cavity multimodes. We obtain a unitary transformation that diagonalizes harmonic s…
Entropy production in a photovoltaic cell
Mohammad H. Ansari
We evaluate entropy production in a photovoltaic cell that is modeled by four electronic levels resonantly coupled to thermally populated field modes at different temperatures. We…
Noise-induced Renyi entropy flow of a quantum heat engine
Mohammad H. Ansari
Entropy is one of the central quantities in thermodynamics, whose flow between two systems determines the statistics of energy transfers. In quantum systems entropy is non-linear i…
Stimulated quantum phase slips from weak electromagnetic radiations in superconducting nanowires
Amir Jafari-Salim, Amin Eftekharian, A. Hamed Majedi +1
We study the rate of quantum phase slips in an ultranarrow superconducting nanowire exposed to weak electromagnetic radiations. The superconductor is in the dirty limit close to th…