345 citations · 972 across the 28 of their papers we have counts for
28 papers
Q-based, objective-field model for wave-function collapse: Analyzing measurement on a macroscopic superposition state
Channa Hatharasinghe, Ashleigh Willis, Run Yan Teh +2
In this paper, we examine measurement using the Q-based, objective-field model for quantum mechanics. Schrodinger considered a microscopic system prepared in a superposition of sta…
Non-periodic Fourier propagation algorithms for partial differential equations
Channa Hatharasinghe, Run Yan Teh, Jesse van Rhijn +2
Spectral methods for partial differential equations (PDEs) with non-periodic boundary conditions arising in computational physics often use polynomial expansions on non-uniform gri…
Quest for quantum advantage: Monte Carlo wave-function simulations of the Coherent Ising Machine
Manushan Thenabadu, Run Yan Teh, Jia Wang +3
The Coherent Ising Machine (CIM) is a quantum network of optical parametric oscillators (OPOs) intended to find ground states of the Ising model. This is an NP-hard problem, relate…
Resolving Schrödinger's analysis of the Einstein-Podolsky-Rosen paradox: an incompleteness criterion and weak elements of reality
C. McGuigan, R. Y. Teh, P. D. Drummond +1
The Einstein-Podolsky-Rosen (EPR) paradox was presented as an argument that quantum mechanics is an incomplete description of physical reality. However, the premises on which the a…
Complexity order of multiple resource algorithms
Run Yan Teh, Manushan Thenabadu, Peter D Drummond
Algorithmic efficiency is essential to reducing energy and time usage for computational problems. Optimizing efficiency is important for tasks involving multiple resources, for exa…
Sub-100-fs formation of dark excitons in monolayer WS2
Pavel V. Kolesnichenko, Lukas Wittenbecher, Qianhui Zhang +5
Two-dimensional semiconducting transition metal dichalcogenides (TMDs) are promising for optoelectronic applications due to their strongly bound excitons. While bright excitons hav…
The Quantum and Stochastic Toolbox: xSPDE4.2
Peter D. Drummond, Run Yan Teh, Manushan Thenabadu +5
This is the fourth major release of the xSPDE toolbox, which solves stochastic partial and ordinary differential equations, with applications in biology, chemistry, engineering, me…
Wigner's Friend paradoxes: consistency with weak-contextual and weak-macroscopic realism models
Ria Joseph, Manushan Thenabadu, Channa Hatharasinghe +4
Wigner's friend paradoxes highlight contradictions between measurements made by Friends inside a laboratory and superobservers outside a laboratory, who have access to an entangled…
An Einstein-Podolsky-Rosen argument based on weak forms of local realism not falsifiable by GHZ or Bell experiments
Jesse Fulton, Run Yan Teh, M. D. Reid
The Einstein-Podolsky-Rosen (EPR) paradox gives an argument for the incompleteness of quantum mechanics based on the premises of local realism. A general view is that the argument…
Mesoscopic and macroscopic quantum correlations in photonic, atomic and optomechanical systems
Run Yan Teh, Laura Rosales-Zárate, Peter D. Drummond +1
This paper reviews the progress that has been made in our knowledge of quantum correlations at the mesoscopic and macroscopic level. We begin by summarizing the Einstein-Podolsky-R…
Simulating macroscopic quantum correlations in linear networks
A. Dellios, Peter D. Drummond, Bogdan Opanchuk +2
Many developing quantum technologies make use of quantum networks of different types. Even linear quantum networks are nontrivial, as the output photon distributions can be exponen…
Full multipartite steering inseparability, genuine multipartite steering and monogamy for continuous variable systems
Run Yan Teh, Manuel Gessner, Margaret D. Reid +1
We derive inequalities sufficient to detect the genuine -partite steering of distinct systems. Here, we are careful to distinguish between the concepts of full -partite s…
Weak versus deterministic macroscopic realism, and Einstein-Podolsky-Rosen's elements of reality
Jesse Fulton, M. Thenabadu, Run Yan Teh +1
Violation of Leggett-Garg inequalities allows proof of the incompatibility between quantum mechanics and the combined premises (called macrorealism) of macroscopic realism (MR) and…
Overcoming decoherence of cat-states formed in a cavity using squeezed-state inputs
R. Y. Teh, P. D. Drummond, M. D. Reid
A cat-state is a superposition of two coherent states with amplitudes and . Recent experiments create cat states in a microwave cavity field using superconducting c…
Dynamics of transient cat-states in degenerate parametric oscillation with and without nonlinear Kerr interactions
R. Y. Teh, F. -X. Sun, R. E. S. Polkinghorne +4
A cat-state is formed as the steady-state solution for the signal mode of an ideal, degenerate parametric oscillator, in the limit of negligible single-photon signal loss. In the p…
Schrödinger cats and steady states in subharmonic generation with Kerr nonlinearities
Feng-Xiao Sun, Qiongyi He, Qihuang Gong +3
We discuss general properties of the equilibrium state of parametric down-conversion in superconducting quantum circuits with detunings and Kerr anharmonicities, in the strongly no…
Criteria to detect genuine multipartite entanglement using spin measurements
R. Y. Teh, M. D. Reid
We derive conditions in the form of inequalities to detect the genuine -partite entanglement of systems. The inequalities are expressed in terms of variances of spin operato…
Discrete time symmetry breaking in quantum circuits: exact solutions and tunneling
Feng-Xiao Sun, Qiongyi He, Qihuang Gong +3
We discuss general properties of discrete time quantum symmetry breaking in degenerate parametric oscillators. Recent experiments in superconducting quantum circuit with Josephson…
Mesoscopic two-mode entangled and steerable states of 40,000 atoms in a Bose-Einstein condensate interferometer
B. Opanchuk, L. Rosales-Zárate, R. Y. Teh +4
Using criteria based on superselection rules, we analyze the quantum correlations between the two condensate modes of the Bose-Einstein condensate interferometer of Egorov et al. […
Quantum fidelity measures for mixed states
Yeong-Cherng Liang, Yu-Hao Yeh, Paulo E. M. F. Mendonça +3
Applications of quantum technology often require fidelities to quantify performance. These provide a fundamental yardstick for the comparison of two quantum states. While this is s…
Creation, storage and retrieval of an optomechanical cat state
R. Y. Teh, S. Kiesewetter, P. D. Drummond +1
We analyze a method for the creation, storage and retrieval of optomechanical Schrodinger cat states, in which there is a quantum superposition of two distinct macroscopic states o…
Monogamy inequalities for entanglement using continuous variable measurements
L. Rosales-Zárate, R. Y. Teh, B. Opanchuk +1
We consider three modes , and and derive continuous variable monogamy inequalities that constrain the distribution of bipartite entanglement amongst the three modes. The…
Pulsed entanglement of two optomechanical oscillators
S. Kiesewetter, R. Y. Teh, M. D. Reid +1
A strategy for generating entanglement in two separated optomechanical oscillators is analysed, using entangled radiation produced from downconversion and stored in an initiating c…
Quantifying the mesoscopic quantum coherence of approximate NOON states and spin-squeezed two-mode Bose-Einstein condensates
B. Opanchuk, L. Rosales-Zárate, R. Y. Teh +1
We examine how to signify and quantify the mesoscopic quantum coherence of approximate two-mode NOON states and spin-squeezed two-mode Bose-Einstein condensates (BEC). We identify…