61 citations · 210 across the 14 of their papers we have counts for
15 papers
Interacting fermion dynamics in Majorana phase-space
Ria Rushin Joseph, Laura E C Rosales-Zárate, Peter D Drummond
The problem of fermion dynamics is studied using the Q-function for fermions. This is a probabilistic phase-space representation, which we express using Majorana operators, so that…
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. […
Einstein-Podolsky-Rosen steering, depth of steering and planar spin squeezing in two-mode Bose-Einstein condensates
Laura Rosales-Zárate, Bryan J. Dalton, Margaret D. Reid
We show how one can prepare and detect entanglement and Einstein-Podolsky-Rosen (EPR) steering between two distinguishable groups (modes) of atoms in a Bose-Einstein condensate (BE…
Phase space methods for Majorana fermions
Ria Rushin Joseph, Laura E. C. Rosales-Zárate, Peter D. Drummond
Fermionic phase space representations are a promising method for studying correlated fermion systems. The fermionic Q-function and P-function have been defined using Gaussian opera…
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…
The scaling of boson sampling experiments
Peter D. Drummond, Bogdan Opanchuk, Laura Rosales-Zárate +2
Boson sampling is the problem of generating a quantum bit stream whose average is the permanent of a matrix. The bitstream is created as the output of a prototype quant…
The sup-norm problem for GL(2) over number fields
Valentin Blomer, Gergely Harcos, Péter Maga +1
We solve the sup-norm problem for spherical Hecke-Maass newforms of square-free level for the group GL(2) over a number field, with a power saving over the local geometric bound si…
Decoherence of Einstein-Podolsky-Rosen steering
L. Rosales-Zárate, R. Y. Teh, S. Kiesewetter +3
We consider two systems A and B that share Einstein-Podolsky-Rosen (EPR) steering correlations and study how these correlations will decay, when each of the systems are independent…
Critical fluctuations in an optical parametric oscillator: when light behaves like magnetism
Kaled Dechoum, Laura Rosales-Zárate, Peter D. Drummond
We study the nondegenerate optical parametric oscillator in a planar interferometer near threshold, where critical phenomena are expected. These phenomena are associated with noneq…
Quantum probabilistic sampling of multipartite 60-qubit Bell inequality violations
Margaret D. Reid, Bogdan Opanchuk, Laura Rosales-Zárate +1
We show that violation of genuine multipartite Bell inequalities can be obtained with sampled, probabilistic phase space methods. These genuine Bell violations cannot be replicated…
Probabilistic quantum phase-space simulation of Bell violations and their dynamical evolution
Laura Rosales-Zárate, Bogdan Opanchuk, Peter D. Drummond +1
Quantum simulations of Bell inequality violations are numerically obtained using probabilistic phase space methods, namely the positive P-representation. In this approach the momen…
Simulating Bell violations without quantum computers
Peter D. Drummond, Bogdan Opanchuk, Laura Rosales-Zárate +1
We demonstrate that it is possible to simulate Bell violations using probabilistic methods. A quantum state corresponding to optical experiments that violate the Bell inequality is…
Probabilistic simulation of mesoscopic "Schrödinger cat" states
Bogdan Opanchuk, Laura Rosales-Zárate, Margaret D. Reid +1
We carry out probabilistic phase-space sampling of mesoscopic Schrödinger cat quantum states, demonstrating multipartite Bell violations for up to 60 qubits. We use states similar…
Resolution of unity for fermionic Gaussian operators
Laura E. C. Rosales-Zárate, P. D. Drummond
The fermionic Gaussian operator basis provides a representation for treating strongly correlated fermion systems, as well as playing an important role in random matrix theory. We p…
Linear entropy in quantum phase space
Laura E. C. Rosales-Zárate, P. D. Drummond
We calculate the quantum Renyi entropy in a phase space representation for either fermions or bosons. This can also be used to calculate purity and fidelity, or the entanglement be…