Direct tomography of quantum states and processes via weak measurements of Pauli spin operators on an NMR quantum processor
In this paper, we present an efficient weak measurement-based scheme for direct quantum
state tomography (DQST) and direct quantum process tomography (DQPT) and …
state tomography (DQST) and direct quantum process tomography (DQPT) and …
Direct measurement of density matrices via dense dual bases
Efficient understanding of a quantum system fundamentally relies on the selection of
observables. Pauli observables and mutually unbiased bases (MUBs) are widely used in …
observables. Pauli observables and mutually unbiased bases (MUBs) are widely used in …
Direct measurement of density-matrix elements with a phase-shifting technique on a quantum photonic chip
C Li, Y Wang, T Feng, Z Li, C Ren, X Zhou - Physical Review A, 2022 - APS
A direct measurement protocol allows reconstructing specific elements of the density matrix
of a quantum state without using quantum state tomography. Until now, most direct …
of a quantum state without using quantum state tomography. Until now, most direct …
Two measurement bases are asymptotically informationally complete for any pure state tomography
T Feng, T **ao, Y Wang, S Pang, F Hanif… - arxiv preprint arxiv …, 2025 - arxiv.org
One of the fundamental questions in quantum information theory is to find how many
measurement bases are required to obtain the full information of a quantum state. While a …
measurement bases are required to obtain the full information of a quantum state. While a …
Novel techniques for efficient quantum state tomography and quantum process tomography and their experimental implementation
A Gaikwad - arxiv preprint arxiv:2401.09941, 2024 - arxiv.org
This thesis actively focuses on designing, analyzing, and experimentally implementing
various QST and QPT protocols using an NMR ensemble quantum processor and …
various QST and QPT protocols using an NMR ensemble quantum processor and …
A unified view of direct measurement of quantum states, processes, and measurements
The dynamics of a quantum system are characterized by three components: quantum state,
quantum process, and quantum measurement. The proper measurement of these …
quantum process, and quantum measurement. The proper measurement of these …
Phases unlocked: The crucial role of Qubit phases in quantum computing
Quantum computing applies quantum physics ideas to problems that traditional computers
cannot address. The qubit, or quantum equivalent of the classical bit, is fundamental to this …
cannot address. The qubit, or quantum equivalent of the classical bit, is fundamental to this …