Quantum information scrambling on a superconducting qutrit processor

MS Blok, VV Ramasesh, T Schuster, K O'Brien… - Physical Review X, 2021 - APS
The dynamics of quantum information in strongly interacting systems, known as quantum
information scrambling, has recently become a common thread in our understanding of …

Practical trapped-ion protocols for universal qudit-based quantum computing

PJ Low, BM White, AA Cox, ML Day, C Senko - Physical Review Research, 2020 - APS
The notion of universal quantum computation can be generalized to multilevel qudits, which
offer advantages in resource usage and algorithmic efficiencies. Trapped ions, which are …

Ancilla-free implementation of generalized measurements for qubits embedded in a qudit space

LE Fischer, D Miller, F Tacchino, PK Barkoutsos… - Physical review …, 2022 - APS
Informationally complete (IC) positive operator-valued measures (POVMs) are generalized
quantum measurements that offer advantages over the standard computational basis …

Prospects for simulating a qudit-based model of scalar QED

EJ Gustafson - Physical review D, 2021 - APS
We present a gauge invariant digitization of (1+ 1) d scalar quantum electrodynamics for an
arbitrary spin truncation for qudit-based quantum computers. We provide a construction of …

Decomposing the generalized Toffoli gate with qutrits

AS Nikolaeva, EO Kiktenko, AK Fedorov - Physical review A, 2022 - APS
The problem of finding efficient decompositions of multiqubit gates is of importance for
quantum computing, especially, in application to existing noisy intermediate-scale quantum …

High-dimensional quantum teleportation under noisy environments

A Fonseca - Physical Review A, 2019 - APS
We study the protocol of qudit teleportation using quantum systems subjected to several
kinds of noise for arbitrary dimensionality d. We consider four classes of noise: dit-flip, d …

Scalable quantum computing with qudits on a graph

EO Kiktenko, AS Nikolaeva, P Xu, GV Shlyapnikov… - Physical Review A, 2020 - APS
We show a significant reduction of the number of quantum operations and the improvement
of the circuit depth for the realization of the Toffoli gate by using qudits. This is done by …

Realizing quantum gates with optically addressable ion qudits

MA Aksenov, IV Zalivako, IA Semerikov, AS Borisenko… - Physical Review A, 2023 - APS
The use of multilevel information carriers, also known as qudits, is a promising path for
exploring scalability of quantum computing devices. Here we present a proof-of-principle …

[HTML][HTML] Efficient realization of quantum algorithms with qudits

AS Nikolaeva, EO Kiktenko, AK Fedorov - EPJ Quantum Technology, 2024 - Springer
The development of a universal fault-tolerant quantum computer that can solve efficiently
various difficult computational problems is an outstanding challenge for science and …

Demonstration of a parity-time-symmetry-breaking phase transition using superconducting and trapped-ion qutrits

AS Kazmina, IV Zalivako, AS Borisenko, NA Nemkov… - Physical Review A, 2024 - APS
Scalable quantum computers hold the promise to solve hard computational problems, such
as prime factorization, combinatorial optimization, simulation of many-body physics, and …