6 papers
Noise structuring in fixed-depth Trotter simulation: stationary channels and observable-level depolarization
G. L. Stavisskii, W. V. Pogosov, L. E. Fedichkin +1
We analyze fixed-depth Trotter simulation as a method for structuring hardware noise in digital many-body dynamics. The number of layers is chosen using the largest endpoint time a…
Hybrid physical/logical zero-noise extrapolation with limited logical executions
D. V. Babukhin, W. V. Pogosov
Partially error-corrected logical executions are expected to become available before fully fault-tolerant quantum computation, but such executions usually take much longer runtime…
Energy-selective quantum search with Ising Hamiltonian phase oracles
A. S. Plyashechnik, A. A. Zhukov, A. V. Lebedev +1
Ising Hamiltonians are basic models of disordered magnets and a standard language for quantum and classical optimization. We study an energy-selective quantum search primitive in w…
Sideband fingerprints of antibunched light in cascaded quantum wave mixing
R. D. Ivanovskikh, W. V. Pogosov, A. A. Elistratov +5
Quantum wave mixing on a single superconducting qubit produces a hierarchy of coherent side peaks associated with elastic multiphoton scattering pathways. In a cascaded source--pro…
Photon pairs, squeezed light and the quantum wave mixing effect in a cascaded qubit system
R. D. Ivanovskikh, W. V. Pogosov, A. A. Elistratov +6
We develop a theoretical description of quantum wave mixing (QWM) in a cascaded waveguide-QED system of two superconducting qubits, where the probe is driven by an external coheren…
Grover's search meets Ising models: a quantum algorithm for finding low-energy states
Andrey Zhukov, Andrey Lebedev, Walter Pogosov
We propose a methodology for implementing Grover's algorithm in the digital quantum simulation of disordered Ising models. The core concept revolves around using the evolution oper…