61 citations · 79 across the 7 of their papers we have counts for
8 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…
Spectral theory of energy-selective quantum search with Ising Hamiltonian phase oracles
A. S. Plyashechnik, A. A. Zhukov, A. V. Lebedev +1
We develop an exact spectral-response theory for the Grover-type iterate \(W_T=D_ξ\exp(-\mathrm{i} T H)\), in which the evolution generated by a diagonal Ising Hamiltonian is used…
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…
Time-adaptive phase estimation
Brennan de Neeve, Andrey V. Lebedev, Vlad Negnevitsky +1
Phase estimation is known to be a robust method for single-qubit gate calibration in quantum computers, while Bayesian estimation is widely used in devising optimal methods for lea…
Critical phase boundary and finite-size fluctuations in Su-Schrieffer-Heeger model with random inter-cell couplings
D. S. Shapiro, S. V. Remizov, A. V. Lebedev +4
A dimerized fermion chain, described by Su-Schrieffer-Heeger (SSH) model, is a well-known example of 1D system with a non-trivial band topology. An interplay of disorder and topolo…
Extended quantum Maxwell demon acting over macroscopic distances
A. V. Lebedev, G. B. Lesovik, V. M. Vinokur +1
A quantum Maxwell demon is a device that can lower the entropy of a quantum system by providing it with purity. The functionality of such a quantum demon is rooted in a quantum mec…
Arrow of time and its reversal on IBM quantum computer
G. B. Lesovik, I. A. Sadovskyy, M. V. Suslov +2
Uncovering the origin of the arrow of time remains a fundamental scientific challenge. Within the framework of statistical physics, this problem was inextricably associated with th…
Quantum metrology with a transmon qutrit
A. R. Shlyakhov, V. V. Zemlyanov, M. V. Suslov +4
Making use of coherence and entanglement as metrological quantum resources allows to improve the measurement precision from the shot-noise- or quantum limit to the Heisenberg limit…