activity
20242026
most citedQuantum SWAP gate realized with CZ and iSWAP gates in a superconducting architecture

10 citations · 25 across the 7 of their papers we have counts for

collaborators

10 papers

quant-ph2026

Optimal robust single-qubit gates in superconducting quantum processors

Tangyou Huang, Anuj Aggarwal, Jingjun Zhu +11

Fault-tolerant quantum computing requires high-fidelity quantum gates that are resilient to control errors and device imperfections. Here, we develop energy-optimal control pulses…

quant-ph2026

Classical Shadows with Selective GHZ Measurements

Nicolas Faroß, Marc Wanner, Pingal Pratyush Nath +3

Classical shadows allow the prediction of many quantum-state properties from measurement data, but their efficiency strongly depends on the underlying measurement ensemble. We intr…

quant-ph2026

Heuristically optimizing, synthesizing, and prioritizing measurement settings for quantum state tomography

Sumukh S. Moudghalya, Anton Frisk Kockum, Akshay Gaikwad

A key task in many quantum-computing applications, e.g., quantum simulation and quantum state tomography (QST), is to partition an arbitrary set of operators into mutually commutin…

quant-ph2025

Quantum measurement tomography with mini-batch stochastic gradient descent

Akshay Gaikwad, Manuel Sebastian Torres, Anton Frisk Kockum

Drawing inspiration from gradient-descent methods developed for data processing in quantum state tomography [\href{https://iopscience.iop.org/article/10.1088/2058-9565/ae0baa}{Quan…

quant-ph2025

Quantum Process Tomography with Digital Twins of Error Matrices

Tangyou Huang, Akshay Gaikwad, Ilya Moskalenko +19

Accurate and robust quantum process tomography (QPT) is crucial for verifying quantum gates and diagnosing implementation faults in experiments aimed at building universal quantum…

quant-ph2025★ 7 cited

Gradient-descent methods for fast quantum state tomography

Akshay Gaikwad, Manuel Sebastian Torres, Shahnawaz Ahmed +1

Quantum state tomography (QST) is a widely employed technique for characterizing the state of a quantum system. However, it is plagued by two fundamental challenges: computational…

quant-ph2025

Selective and efficient quantum state tomography for multi-qubit systems

Aniket Patel, Akshay Gaikwad, Tangyou Huang +2

Quantum state tomography (QST) is a crucial tool for characterizing quantum states. However, QST becomes impractical for reconstructing multi-qubit density matrices since data sets…

quant-ph2024★ 10 cited

Quantum SWAP gate realized with CZ and iSWAP gates in a superconducting architecture

Christian Križan, Janka Biznárová, Liangyu Chen +19

It is advantageous for any quantum processor to support different classes of two-qubit quantum logic gates when compiling quantum circuits, a property that is typically not seen wi…

quant-ph2024★ 4 cited

Deterministic generation of frequency-bin-encoded microwave photons

Jiaying Yang, Maryam Khanahmadi, Ingrid Strandberg +7

A distributed quantum computing network requires a quantum communication channel between spatially separated processing units. In superconducting circuits, such a channel can be im…

quant-ph2024★ 4 cited

Entanglement of photonic modes from a continuously driven two-level system

Jiaying Yang, Ingrid Strandberg, Alejandro Vivas-Viana +7

The ability to generate entangled states of light is a key primitive for quantum communication and distributed quantum computation. Continuously driven sources, including those bas…