Experimentally Witnessing the Quantumness of Correlations

Auccaise, R.; Maziero, Jonas; Céleri, Lucas C.; Soares-Pinto, Diogo O.; deAzevedo, Eduardo R.; Bonagamba, Tito J.; Sarthour, R. S.; Oliveira, I. S.; Serra, R. M.

doi:10.1103/physrevlett.107.070501

Cited by 127 publications

(157 citation statements)

References 29 publications

Supporting

Mentioning

150

Contrasting

Order By: Relevance

“…On the other hand, in the case of mixedstate computation, in certain computational tasks quantum speed-up can be achieved using separable (unentangled) states, like in the so-called deterministic quantum computation with one qubit (DQC1) protocol [5]. This speed-up has been linked [6] to the presence of quantum discord [7,8], considered as a quantifier of the quantum part of correlations present in a bipartite system and defined as the difference between two quantum analogues of the classical mutual information [9,10].…”

Section: Introductionmentioning

confidence: 99%

Unified view of correlations using the square-norm distance

et al. 2012

View full text Add to dashboard Cite

The distance between a quantum state and its closest state not having a certain property has been used to quantify the amount of correlations corresponding to that property. This approach allows a unified view of the various kinds of correlations present in a quantum system. In particular, using relative entropy as a distance measure, total correlations can be meaningfully separated in a quantum and a classical part thanks to an additive relation involving only distances between states. Here, we investigate a unified view of correlations using as distance measure the square norm, already used to define the so-called geometric quantum discord. We thus consider geometric quantifiers also for total and classical correlations finding, for a quite general class of bipartite states, their explicit expressions. We analyze the relationship among geometric total, quantum and classical correlations and we find that they do not satisfy anymore a closed additivity relation.

show abstract

Section: Introductionmentioning

confidence: 99%

Unified view of correlations using the square-norm distance

et al. 2012

View full text Add to dashboard Cite

show abstract

“…As previously mentioned, the recent work by Susskind & Maldacena that demonstrates the equivalence of maximally extended black holes in asymptotically anti-de Sitter space (which produces wormholes) with quantum entanglement in conformal field theory (AdS/CFT Correspondence theorem), suggests that entanglement is simply one manifestation of the Planckian wormhole network, such that other correlations (quantum correlations occur even in separable states (Auccaise et al, 2011) albeit weaker in strength or shared information content) also arise from the Planckian wormhole communication channels. We generalize this theorem to model multiply entangled systems, which would have a relatively higher Planckian wormhole density.…”

Section: Ordering Dynamics Of the Universal Spacememory Fieldmentioning

confidence: 92%

The Unified Spacememory Network: from Cosmogenesis to Consciousness

Haramein¹,

Brown²,

Baker³

2016

Neuroquantology

View full text Add to dashboard Cite

The recent developments of advanced models of unified physics have brought a deeper understanding of the fundamental nature of space, time, energy and matter. It is becoming apparent that information and geometry are primary to explaining these fundamental agents. In previous work, we demonstrated that the subatomic nucleon structure of the proton and recently the electron can be derived directly from a spacetime holographic structure of Planck-scale quantum vacuum oscillators fluctuating as spacetime pixels, demonstrating that spacetime at the very fine level of the Planck-scale is discrete with information quanta. We have found that when considering the granular spacetime information-energy structure from which we demonstrate matter and mass arises, the phenomena of self-organizing systems that leads to self-awareness and consciousness is integral to-and a natural emergent property of the feedback-dynamics of spacetime information itself. In this work, we describe how the integral function of the information feedback dynamics of spacetime, which engender mass-energy, is the missing element in understanding the evolution and development of self-organizing physical systems in general, and the emergence of the biological organism in particular. We evaluate non-classical quantum mechanical phenomena of physical and biological systems in light of the Maldacena-Susskind holographic correspondence theorem from which an equivalence of wormhole spacetime geometry and quantum entanglement is derived. We suggest that the Planck-scale micro-wormhole entanglement structure of multiple spacetime coordinates engender the macromolecular assemblies of living cells, and that this wormhole-entanglement may function in the memory and learning capacity of the biological entity. Furthermore, the recursive information encoding feedback processes of the quantum spacetime micro-wormhole network, which we refer to as spacememory, enables memory and learning in physical systems across all scales, resulting in universal evolutionary tendencies towards higher levels of ordering and complexity -foundational to evolution, sentience, and awareness.

show abstract

“…Studies of entanglement dynamics in the presence of noise enjoy a long history [11,12]; in contrast, similar studies on quantum discord dynamics have been carried out only recently [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Negativity and quantum discord in Davies environments

Dajka¹,

Mierzejewski²,

Łuczka³

et al. 2012

J. Phys. A: Math. Theor.

View full text Add to dashboard Cite

We investigate the time evolution of negativity and quantum discord for a pair of non-interacting qubits with one being weakly coupled to a decohering Davies-type Markovian environment. At initial time of preparation, the qubits are prepared in one of the maximally entangled pure Bell states. In the limiting case of pure decoherence (i.e. pure dephasing), both, the quantum discord and negativity decay to zero in the long time limit. In presence of a manifest dissipative dynamics, the entanglement negativity undergoes a sudden death at finite time while the quantum discord relaxes continuously to zero with increasing time. We find that in dephasing environments the decay of the negativity is more propitious with increasing time; in contrast, the evolving decay of the quantum discord proceeds weaker for dissipative environments. Particularly, the slowest decay of the quantum discord emerges when the energy relaxation time matches the dephasing time.

show abstract

Experimentally Witnessing the Quantumness of Correlations

Cited by 127 publications

References 29 publications

Unified view of correlations using the square-norm distance

Unified view of correlations using the square-norm distance

The Unified Spacememory Network: from Cosmogenesis to Consciousness

Negativity and quantum discord in Davies environments

Contact Info

Product

Resources

About