1.6k citations · 7k across the 88 of their papers we have counts for
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Speed limits of two-qutrit gates
Bora Basyildiz, Zhexuan Gong, Sahel Ashhab
The speed of elementary quantum gates sets a limit on the speed at which quantum circuits can be applied and, as a result, the size of the computations that can be performed on a q…
Fast Bosonic Control via Multiphoton Qubit-Oscillator Interactions
Noah Gorgichuk, Mohammad Ayyash, Matteo Mariantoni +1
We study the problem of -fold rotationally symmetric bosonic state preparation, which is of great importance to bosonic quantum error correction, using a multiphoton interaction…
Statistical analysis of barren plateaus in variational quantum algorithms
Le Bin Ho, Jesus Urbaneja, Sahel Ashhab
We investigate the barren plateau (BP) phenomenon in variational quantum algorithms using a statistical approach. Using Gaussian function models, we identify three distinct types o…
Finite-dimensional approximations of generalized squeezing
Sahel Ashhab, Felix Fischer, Davide Lonigro +2
We show unexpected behaviour in simulations of generalized squeezing performed with finite-dimensional truncations of the Fock space: even for extremely large dimension of the stat…
Physically motivated decompositions of single-qutrit gates
Aryan Iliat, Mark Byrd, Sahel Ashhab +1
Although only two quantum states of a physical system are often used to encode quantum information in the form of qubits, many levels can in principle be used to obtain qudits and…
Automated discovery and optimization of autonomous quantum error correction codes for a general open quantum system
Sahel Ashhab
We develop a method to search for the optimal code space, induced decay rates and control Hamiltonian to implement autonomous quantum error correction (AQEC) for a general open qua…
Dispersive regime of multiphoton qubit-oscillator interactions
Mohammad Ayyash, Sahel Ashhab
The dispersive regime of -photon qubit-oscillator interactions is analyzed using Schrieffer-Wolff perturbation theory. Effective Hamiltonians are derived up to the second order…