10.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of SydneyAU198 papers
- Centre for Quantum Computation and Communication TechnologyAU120 papers
- UNSW SydneyAU97 papers
- Australian National UniversityAU88 papers
- Tsinghua UniversityCN80 papers
- Commonwealth Scientific and Industrial Research OrganisationAU75 papers
- Chinese Academy of SciencesCN74 papers
- Macquarie UniversityAU68 papers
- The University of MelbourneAU50 papers
- Data61AU43 papers
- ARC Centre of Excellence for Transformative Meta-Optical SystemsAU41 papers
- Nanyang Technological UniversitySG41 papers
27 papers · 2 filters
Further improving quantum algorithms for nonlinear differential equations via higher-order methods and rescaling
Pedro C. S. Costa, Philipp Schleich, Mauro E. S. Morales +1
The solution of large systems of nonlinear differential equations is needed for many applications in science and engineering. In this study, we present three main improvements to e…
On the quantum time complexity of divide and conquer
Jonathan Allcock, Jinge Bao, Aleksandrs Belovs +2
We initiate a systematic study of the time complexity of quantum divide and conquer algorithms for classical problems. We establish generic conditions under which search and minimi…
Quantum conditional mutual information of W state in non-inertial frames
H Saveetha, Peter P. Rohde, R Chandrashekar
Quantum conditional mutual information (QCMI) is a versatile information theoretic measure. It is used to find the amount of correlations between two qubits from the perspective of…
Improving Continuous-variable Quantum Channels with Unitary Averaging
S. Nibedita Swain, Ryan J. Marshman, Peter P. Rohde +3
A significant hurdle for quantum information and processing using bosonic systems is stochastic phase errors which occur as the photons propagate through a channel. These errors wi…
Limited quantum advantage for stellar interferometry via continuous-variable teleportation
Zixin Huang, Ben Q. Baragiola, Nicolas C. Menicucci +1
We consider stellar interferometry in the continuous-variable (CV) quantum information formalism and use the quantum Fisher information (QFI) to characterize the performance of thr…
Semi-device-independent certification of quantum non-Markovianity using sequential Random Access Codes
Abhinash Kumar Roy, Varun Srivastava, Soumik Mahanti +2
The characterization of multi-time correlations in open quantum systems is of fundamental importance. In this work, we investigate multi-time processes using the process matrix for…
Solving The Vehicle Routing Problem via Quantum Support Vector Machines
Nishikanta Mohanty, Bikash K. Behera, Christopher Ferrie
The Vehicle Routing Problem (VRP) is an example of a combinatorial optimization problem that has attracted academic attention due to its potential use in various contexts. VRP aims…
Sub-universal variational circuits for combinatorial optimization problems
Gal Weitz, Lirandë Pira, Chris Ferrie +1
Quantum variational circuits have gained significant attention due to their applications in the quantum approximate optimization algorithm and quantum machine learning research. Th…
On the Interpretability of Quantum Neural Networks
Lirandë Pira, Chris Ferrie
Interpretability of artificial intelligence (AI) methods, particularly deep neural networks, is of great interest. This heightened focus stems from the widespread use of AI-backed…
Instantaneous Quantum Polynomial-Time Sampling and Verifiable Quantum Advantage: Stabilizer Scheme and Classical Security
Michael J. Bremner, Bin Cheng, Zhengfeng Ji
Sampling problems demonstrating beyond classical computing power with noisy intermediate scale quantum devices have been experimentally realized. In those realizations, however, ou…
Quantum Lower Bounds by Sample-to-Query Lifting
Qisheng Wang, Zhicheng Zhang
The polynomial method by Beals, Buhrman, Cleve, Mosca, and de Wolf (FOCS 1998, J. ACM 2001), the adversary method by Ambainis (STOC 2000, J. Comput. Syst. Sci. 2002), and the compr…
Multi-time quantum process tomography on a superconducting qubit
Christina Giarmatzi, Tyler Jones, Alexei Gilchrist +3
Current quantum technologies are at the cusp of becoming useful, but still face formidable obstacles such as noise. Noise severely limits the ability to scale quantum devices to th…
Dynamics of magnetization at infinite temperature in a Heisenberg spin chain
Eliott Rosenberg, Trond Andersen, Rhine Samajdar +178
Understanding universal aspects of quantum dynamics is an unresolved problem in statistical mechanics. In particular, the spin dynamics of the 1D Heisenberg model were conjectured…
Algorithmic Cluster Expansions for Quantum Problems
Ryan L. Mann, Romy M. Minko
We establish a general framework for developing approximation algorithms for a class of counting problems. Our framework is based on the cluster expansion of abstract polymer model…
Single-Step Parity Check Gate Set for Quantum Error Correction
Gözde Üstün, Andrea Morello, Simon Devitt
A key requirement for an effective Quantum Error Correction (QEC) scheme is that the physical qubits have error rates below a certain threshold. The value of this threshold depends…
A Substrate Scheduler for Compiling Arbitrary Fault-tolerant Graph States
Sitong Liu, Naphan Benchasattabuse, Darcy QC Morgan +3
Graph states are useful computational resources in quantum computing, particularly in measurement-based quantum computing models. However, compiling arbitrary graph states into exe…
Phase transition in Random Circuit Sampling
A. Morvan, B. Villalonga, X. Mi +182
Undesired coupling to the surrounding environment destroys long-range correlations on quantum processors and hinders the coherent evolution in the nominally available computational…
Measurement-induced entanglement and teleportation on a noisy quantum processor
Jesse C. Hoke, Matteo Ippoliti, Eliott Rosenberg +160
Measurement has a special role in quantum theory: by collapsing the wavefunction it can enable phenomena such as teleportation and thereby alter the "arrow of time" that constrains…
Quantum sensing and imaging with spin defects in hexagonal boron nitride
Sumukh Vaidya, Xingyu Gao, Saakshi Dikshit +2
Color centers in hexagonal boron nitride (hBN) have recently emerged as promising candidates for a new wave of quantum applications. Thanks to hBN's high stability and 2-dimensiona…
Trainability Enhancement of Parameterized Quantum Circuits via Reduced-Domain Parameter Initialization
Yabo Wang, Bo Qi, Chris Ferrie +1
Parameterized quantum circuits (PQCs) have been widely used as a machine learning model to explore the potential of achieving quantum advantages for various tasks. However, trainin…
Special Session: Noisy Intermediate-Scale Quantum (NISQ) Computers -- How They Work, How They Fail, How to Test Them?
Sebastian Brandhofer, Simon Devitt, Thomas Wellens +1
First quantum computers very recently have demonstrated "quantum supremacy" or "quantum advantage": Executing a computation that would have been impossible on a classical machine.…
Time-dependent Mandel Q parameter analysis for a hexagonal boron nitride single photon source
Callum Jones, Jolly Xavier, Samir Vartabi Kashanian +3
The time-dependent Mandel Q parameter, Q(T), provides a measure of photon number variance for a light source as a function of integration time. Here, we use Q(T) to characterise si…
Error Analysis of the Variational Quantum Eigensolver Algorithm
Sebastian Brandhofer, Simon Devitt, Ilia Polian
Variational quantum algorithms have been one of the most intensively studied applications for near-term quantum computing applications. The noisy intermediate-scale quantum (NISQ)…
Multiplexed Pseudo-Deterministic Photon Source with Asymmetric Switching Elements
Sebastian Brandhofer, Casey R. Myers, Simon J. Devitt +1
The reliable, deterministic production of trustworthy high-quality single photons is a critical component of discrete variable, optical quantum technology. For single-photon based…