Gaussian states
Quantum benchmarks for pure single mode Gaussian states
... single-mode Gaussian states, which can be readily employed to validate current and future ...multimode Gaussian states and other classes of Gilmore-Perelomov coherent states, including ...
6
Asymmetric quantum hypothesis testing with Gaussian states
... For such a basic problem, we know closed analytical formulas identifying both the minimum error probability, given by the Helstrom bound [6], and the optimal quantum detection, expressed in terms of the Helstrom matrix ...
9
Theory of genuine tripartite nonlocality of Gaussian states
... variable states is represented by Gaussian states, which include coherent, squeezed, and thermal states of harmonic Hamiltonians [29 – ...[32], Gaussian states and operations are ...
6
Continuous variable versus hybrid schemes for quantum teleportation of Gaussian states
... single-mode Gaussian states using these schemes and see how they fare against the optimal measure-and-prepare strategies—the ...resource states, brings into question any advantage due to ...
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Genuine multipartite nonlocality of permutationally invariant Gaussian states
... n-mode Gaussian states [40], which are known as the con- tinuous variable counterparts of both GHZ and W states of n qubits, as they maximize both the genuine n-partite entangle- ment and the ...
10
Purity of Gaussian states: Measurement schemes and time evolution in noisy channels
... The paper is structured as follows. In Sec. II, we show how purity is related to observable quantities for Gaussian states, and how it can be obtained either from the Q function or by three ...
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Asymptotically optimal quantum channel reversal for qudit ensembles and multimode Gaussian states
... The paper is organized as follows. In section 2 we find the optimal procedure and rate for reversing the action of general Gaussian channels on a family of Gaussian states with fixed covariance and ...
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Symmetric Logarithmic Derivative of Fermionic Gaussian States
... Fermionic Gaussian states play a major role in the derivation of exact and approximate solution of many-body problems of Fermionic and spin systems. Deriving closed form expressions of quantities involved ...
11
From log determinant inequalities to Gaussian entanglement via recoverability theory
... with Gaussian states [19], it could be interesting to establish whether the equivalence between the Gaussian R´enyi-2 squashed entanglement defined here and the Gaussian R´enyi-2 entanglement ...
17
Gaussian interferometric power
... the Gaussian IP for two-mode Gaussian ...bipartite states of a finite-dimensional system: their amount of quantum correlations beyond entanglement, of the so-called discord type ...
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Quantification of Gaussian quantum steering
... We have seen in general how steering can never exceed entanglement for Gaussian states (with one steered mode). It is interesting to investigate how small G A→B can also be for a given Rényi-2 entanglement ...
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No activation theorem for Gaussian nonclassical correlations by Gaussian operations
... variable Gaussian states and their interplay with ...input Gaussian states, we prove that such an activation protocol cannot be accomplished with Gaussian operations, as the latter are ...
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Quantum nature of Gaussian discord : experimental evidence and role of system environment correlations
... of Gaussian- distributed random displacements of the x ...coherent states and is split up on a beam splitter (BS) as depicted in ...nonzero Gaussian discord despite being classical according to the ...
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Investigating Einstein Podolsky Rosen steering of continuous variable bipartite states by non Gaussian pseudospin measurements
... continuous-variable Gaussian states has been extensively studied theoretically and experimentally, as a fundamental manifestation of the EPR ...exist Gaussian states which are only steerable ...
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Optimal continuous variable quantum teleportation with limited resources
... two-mode Gaussian states with a limited degree of entanglement and ...phase-insensitive Gaussian channels that can be simulated via a Braunstein–Kimble protocol with non-unit gain and minimum shared ...
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Multipartite Gaussian steering: monogamy constraints and quantum cryptography applications
... multipartite Gaussian states of CV systems by Gaussian mea- surements, a physical scenario which closely aligns with the traditional EPR paradox, and which is of primary relevance for experimental ...
6
Strawberry Fields: A Software Platform for Photonic Quantum Computing
... The ultimate goal is for Blackbird programs to be carried out on photonic quantum computers. To lay the ground- work for these emerging devices, Strawberry Fields comes with a suite of three CV quantum computer ...
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Coarse-grained distinguishability of field interactions
... from states to states which is consistent with the probabilistic interpretation of the convex combi- nation of states, as well as with the system being part of a larger ...map Gaussian ...
15
Quantum discord, EPR steering and Bell-type correlations for secure CV quantum communications
... We also investigated the effect of the variation of modulation depth on the peaks separation of conditional marginal distributions (see section 2.9 for the description on the modulation depth). This was done by changing ...
143
Calculating optical absorption spectra for large systems using linear scaling density functional theory
... conduction states were optimized, with four con- duction NGWFs for each atomic species, and a radius of 16 Bohr was used for the density of states (DOS) calcu- lations, whilst 13 Bohr was sufficient to ...
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