78 citations · 206 across the 14 of their papers we have counts for
15 papers
Robustness hierarchy of bipartite quantum correlations under noisy dynamics
Shakib Daryanoosh
Quantum correlations are fragile under noise, motivating quantitative measures that track not only their presence but also their degradation during physical evolution. We develop a…
Improving the Loss Tolerance of Heralded Photonic GHZ States for Long-Distance Device-Independent Conference Key Agreement
Yazeed K. Alwehaibi, Makoto Ishihara, Shakib Daryanoosh +6
Heralded multipartite entanglement distribution is a key requirement for device-independent conference key agreement (DI-CKA) over lossy quantum networks. Although locally equivale…
From normal Lindbladians to non-normal quantum trajectories
Shakib Daryanoosh
Efficient simulation of Markovian open quantum systems remains a central challenge because the density-matrix description grows exponentially with system size. Quantum trajectory m…
Non-normality and dissipation in Markovian quantum dynamics: Implications for quantum simulation
Shakib Daryanoosh
Understanding the structure and stability of open quantum dynamics is increasingly important for both fundamental studies of nonequilibrium quantum systems and the development of q…
Quantum approximate optimization of finite-state bosonic systems
Shakib Daryanoosh
There exist numerous problems in nature inherently described by finite -dimensional states. Formulating these problems for execution on qubit-based quantum hardware requires map…
Experimental investigation of a multi-photon Heisenberg-limited interferometric scheme: the effect of imperfections
Shakib Daryanoosh, Geoff J. Pryde, Howard M. Wiseman +1
Interferometric phase estimation is an essential tool for precise measurements of quantities such as displacement, velocity and material properties. The lower bound on measurement…
Collisional-model quantum trajectories for entangled qubit environments
Shakib Daryanoosh, Alexei Gilchrist, Ben Q. Baragiola
We study the dynamics of quantum systems interacting with a stream of entangled qubits. Under fairly general conditions, we present a detailed framework describing the conditional…
Quantum-enhanced stimulated emission microscopy
Gil Triginer Garces, Helen M. Chrzanowski, Shakib Daryanoosh +6
Nonlinear optical microscopy techniques have emerged as a set of successful tools for biological imaging. Stimulated emission microscopy belongs to a small subset of pump-probe tec…
Energy efficient mining on a quantum-enabled blockchain using light
Adam J Bennet, Shakib Daryanoosh
We outline a quantum-enabled blockchain architecture based on a consortium of quantum servers. The network is hybridised, utilising digital systems for sharing and processing class…
Power and Efficiency of a Thermal Engine with a Coherent Bath
Thomas Guff, Shakib Daryanoosh, Ben Q. Baragiola +1
We consider a quantum engine driven by repeated weak interactions with a heat bath of identical three-level atoms. This model was first introduced by Scully et al. [Science, 2003],…
Quantum master equations for entangled qubit environments
Shakib Daryanoosh, Ben Q. Baragiola, Thomas Guff +1
We study the Markovian dynamics of a collection of n quantum systems coupled to an irreversible environmental channel consisting of a stream of n entangled qubits. Within the frame…
Experimental optical phase measurement approaching the exact Heisenberg limit
Shakib Daryanoosh, Sergei Slussarenko, Dominic W. Berry +2
The use of quantum resources can provide measurement precision beyond the shot-noise limit (SNL). The task of ab initio optical phase measurement---the estimation of a completely u…
Stochastic feedback control of quantum transport to realize a dynamical ensemble of two nonorthogonal pure states
Shakib Daryanoosh, Howard M. Wiseman, Tobias Brandes
A Markovian open quantum system which relaxes to a unique steady state of finite rank can be decomposed into a finite physically realizable ensemble (PRE) of pure states.…
Detector dependency of diffusive quantum monitorings
Shakib Daryanoosh, Howard M. Wiseman, Jay M. Gambetta
Continuous measurements play a pivotal role in the study of dynamical open quantum systems. `Dyne' detections are among the most widespread and efficient measurement schemes, and g…
Quantum Jumps Are More Quantum Than Quantum Diffusion
Shakib Daryanoosh, Howard M. Wiseman
It was recently argued [Phys. Rev. Lett 108, 220402 (2012)] that the stochastic dynamics of an open quantum system are not inherent to the system, but rather depend on the existenc…