48 citations · 240 across the 16 of their papers we have counts for
8 papers · 1 filter
Robust quantum gates using smooth pulses and physics-informed neural networks
Utkan Güngördü, J. P. Kestner
The presence of decoherence in quantum computers necessitates the suppression of noise. Dynamically corrected gates via specially designed control pulses offer a path forward, but…
Simulated Randomized Benchmarking of a Dynamically Corrected Cross-Resonance Gate
R. K. L. Colmenar, Utkan Güngördü, J. P. Kestner
We theoretically consider a cross-resonance (CR) gate implemented by pulse sequences proposed by Calderon-Vargas & Kestner, Phys. Rev. Lett. 118, 150502 (2017). These sequences mit…
Parafermion stabilizer codes
Utkan Güngördü, Rabindra Nepal, Alexey A. Kovalev
We define and study parafermion stabilizer codes which can be viewed as generalizations of Kitaev's one dimensional model of unpaired Majorana fermions. Parafermion stabilizer code…
Nonadiabatic holonomic one-qubit gates
Takumi Nitanda, Utkan Güngördü, Mikio Nakahara
Adiabatic quantum gate implementation generally takes longer time, which is disadvantageous in view of decoherence. In this report we implement several essential one-qubit quantum…
Recursive encoding and decoding of the noiseless subsystem for qudits
Utkan Güngördü, Chi-Kwong Li, Mikio Nakahara +2
We give a full explanation of the noiseless subsystem that protects a single-qubit against collective errors and the corresponding recursive scheme described by C.-K. Li et. al. [P…
Non-Adiabatic Universal Holonomic Quantum Gates Based on Abelian Holonomies
Utkan Güngördü, Yidun Wan, Mikio Nakahara
We implement a non-adiabatic universal set of holonomic quantum gates based on abelian holonomies using dynamical invariants, by Lie-algebraic methods. Unlike previous implementati…
Dynamical invariants for quantum control of four-level systems
Utkan Güngördü, Yidun Wan, Mohammad Ali Fasihi +1
We present a Lie-algebraic classification and detailed construction of the dynamical invariants, also known as Lewis-Riesenfeld invariants, of the four-level systems including two-…
Minimal and Robust Composite Two-Qubit Gates with Ising-Type Interaction
Tsubasa Ichikawa, Utkan Güngördü, Masamitsu Bando +2
We construct a minimal robust controlled-NOT gate with an Ising-type interaction by which elementary two-qubit gates are implemented. It is robust against inaccuracy of the couplin…