activity
20102023
most citedOptimal error regions for quantum state estimation

58 citations · 194 across the 11 of their papers we have counts for

collaborators

11 papers

cond-mat.mes-hall2023★ 1 cited

Dynamics of quasiholes and quasiparticles at the edges of small lattices

Xikun Li, Błażej Jaworowski, Masudul Haque +1

We study quench dynamics of bosonic fractional quantum Hall systems in small lattices with cylindrical boundary conditions and low particle density. The states studied have quasiho…

quant-ph2022

Optimal control of quantum state preparation and entanglement creation in two-qubit quantum system with bounded amplitude

Xikun Li

We consider the optimal control problem in a two-qubit system with bounded amplitude. Two cases are studied: quantum state preparation and entanglement creation. Cost functions, fi…

quant-ph2022

Estimation of optimal control for two-level and three-level quantum systems with bounded amplitude

Xikun Li

A systematic scheme is proposed to numerically estimate the quantum speed limit and temporal shape of optimal control in two-level and three-level quantum systems with bounded ampl…

cond-mat.str-el2022★ 8 cited

Laughlin topology on fractal lattices without area law entanglement

Xikun Li, Mani Chandra Jha, Anne E. B. Nielsen

Laughlin states have recently been constructed on fractal lattices, and the charge and braiding statistics of the quasiholes were used to confirm that these states have Laughlin ty…

cond-mat.str-el2021★ 7 cited

Squeezing anyons for braiding on small lattices

N. S. Srivatsa, Xikun Li, Anne E. B. Nielsen

Adiabatically exchanging anyons gives rise to topologically protected operations on the quantum state of the system, but the desired result is only achieved if the anyons are well…

cond-mat.quant-gas2018★ 14 cited

Global optimization for quantum dynamics of few-fermion systems

Xikun Li, Daniel Pęcak, Tomasz Sowiński +2

Quantum state preparation is vital to quantum computation and quantum information processing tasks. In adiabatic state preparation, the target state is theoretically obtained with…

cond-mat.quant-gas2017★ 17 cited

Effective three-body interactions for bosons in a double-well confinement

Jacek Dobrzyniecki, Xikun Li, Anne E. B. Nielsen +1

When describing the low-energy physics of bosons in a double-well potential with a high barrier between the wells and sufficiently weak atom-atom interactions, one can to a good ap…

quant-ph2016★ 22 cited

Optimal error intervals for properties of the quantum state

Xikun Li, Jiangwei Shang, Hui Khoon Ng +1

Quantum state estimation aims at determining the quantum state from observed data. Estimating the full state can require considerable efforts, but one is often only interested in a…

quant-ph2013★ 58 cited

Optimal error regions for quantum state estimation

Jiangwei Shang, Hui Khoon Ng, Arun Sehrawat +2

Rather than point estimators, states of a quantum system that represent one's best guess for the given data, we consider optimal regions of estimators. As the natural counterpart o…

quant-ph2011★ 55 cited

Local Unitary Classification of Arbitrary Dimensional Multipartite Pure States

Bin Liu, Jun-Li Li, Xikun Li +1

We propose a practical entanglement classification scheme for general multipartite pure states in arbitrary dimensions under local unitary equivalence by exploiting the high order…

quant-ph2010★ 12 cited

The Parametric Symmetry and Numbers of the Entangled Class of 2 \times M \times N System

Xikun Li, Junli Li, Bin Liu +1

We present in the work two intriguing results in the entanglement classification of pure and true tripartite entangled state of under stochastic local operation…