Multi-partite entanglement monotones
- URL: http://arxiv.org/abs/2406.17447v2
- Date: Sun, 4 Aug 2024 17:55:16 GMT
- Title: Multi-partite entanglement monotones
- Authors: Abhijit Gadde, Shraiyance Jain, Harshal Kulkarni,
- Abstract summary: We construct a family of quantifying multipartite entanglement measures that are monotonic under local operations and classical communication.
Using these measures we bound the success probability of transforming a given state into another state using local quantum operations and classical communication.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: If we want to transform the quantum of state of a system to another using local processes, what is the probability of success? It turns out that this probability can be bounded by quantifying entanglement within both the states. In this paper, we construct a family of multipartite entanglement measures that are monotonic under local operations and classical communication on average. The measures are constructed out of local unitary invariant polynomials of the state and its conjugate, and hence are easy to compute for pure states. Using these measures we bound the success probability of transforming a given state into another state using local quantum operations and classical communication.
Related papers
- Conclusive Local State Marking: More Nonlocality With No Entanglement [0.0]
Nonlocality exhibited by ensembles of composite quantum states is a striking nonclassical feature of quantum theory.<n>We show that certain ensembles of product states can exhibit a stronger form of nonlocality than entangled ensembles traditionally considered highly nonlocal.
arXiv Detail & Related papers (2025-06-11T05:59:42Z) - Many-body entropies and entanglement from polynomially-many local measurements [0.26388783516590225]
We show that efficient estimation strategies exist under the assumption that all the spatial correlation lengths are finite.
We argue that our method could be practically useful to detect bipartite mixed-state entanglement for large numbers of qubits available in today's quantum platforms.
arXiv Detail & Related papers (2023-11-14T12:13:15Z) - Multipartite entanglement theory with entanglement-nonincreasing
operations [91.3755431537592]
We extend the resource theory of entanglement for multipartite systems beyond the standard framework of local operations and classical communication.
We demonstrate that in this adjusted framework, the transformation rates between multipartite states are fundamentally dictated by the bipartite entanglement entropies of the respective quantum states.
arXiv Detail & Related papers (2023-05-30T12:53:56Z) - Entanglement and localization in long-range quadratic Lindbladians [49.1574468325115]
Signatures of localization have been observed in condensed matter and cold atomic systems.
We propose a model of one-dimensional chain of non-interacting, spinless fermions coupled to a local ensemble of baths.
We show that the steady state of the system undergoes a localization entanglement phase transition by tuning $p$ which remains stable in the presence of coherent hopping.
arXiv Detail & Related papers (2023-03-13T12:45:25Z) - Manipulating fermionic mode entanglement in the presence of superselection rules [0.0]
Superselection rules (SSRs) impose constraints on allowable physical operations in fermionic systems.
We present a majorization-based algorithm for the mixed state transformations of bipartite mode entanglement.
We show that an ancillary mode system can catalyze the change in local parity.
arXiv Detail & Related papers (2023-03-08T13:17:22Z) - Nonlocality under Computational Assumptions [51.020610614131186]
A set of correlations is said to be nonlocal if it cannot be reproduced by spacelike-separated parties sharing randomness and performing local operations.
We show that there exist (efficient) local producing measurements that cannot be reproduced through randomness and quantum-time computation.
arXiv Detail & Related papers (2023-03-03T16:53:30Z) - Upper Bounds on the Distillable Randomness of Bipartite Quantum States [15.208790082352351]
distillable randomness of a bipartite quantum state is an information-theoretic quantity.
We prove measures of classical correlations and prove a number of their properties.
We then further bound these measures from above by some that are efficiently computable by means of semi-definite programming.
arXiv Detail & Related papers (2022-12-18T12:06:25Z) - Quantum state tomography with tensor train cross approximation [84.59270977313619]
We show that full quantum state tomography can be performed for such a state with a minimal number of measurement settings.
Our method requires exponentially fewer state copies than the best known tomography method for unstructured states and local measurements.
arXiv Detail & Related papers (2022-07-13T17:56:28Z) - Stochastic approximate state conversion for entanglement and general quantum resource theories [41.94295877935867]
An important problem in any quantum resource theory is to determine how quantum states can be converted into each other.
Very few results have been presented on the intermediate regime between probabilistic and approximate transformations.
We show that these bounds imply an upper bound on the rates for various classes of states under probabilistic transformations.
We also show that the deterministic version of the single copy bounds can be applied for drawing limitations on the manipulation of quantum channels.
arXiv Detail & Related papers (2021-11-24T17:29:43Z) - Separability and entanglement in superpositions of quantum states [0.0]
We study the superpositions of a pure entangled state and a pure product state, when the amplitudes corresponding to the states appearing in any superposition are nonzero.
All such superpositions produce only entangled states if the initial entangled state has Schmidt rank three or higher.
We find that conditional inseparability of superpositions help in identifying strategies for conclusive local discrimination of shared quantum ensembles.
arXiv Detail & Related papers (2021-08-04T19:48:29Z) - Quantum data hiding with continuous variable systems [8.37609145576126]
We investigate data hiding in the context of continuous variable quantum systems.
We look at the case where $mathcalM=mathrmLOCC$, the set of measurements implementable with local operations and classical communication.
We perform a rigorous quantitative analysis of the error introduced by the non-ideal Braunstein-Kimble quantum teleportation protocol.
arXiv Detail & Related papers (2021-02-01T19:00:14Z) - Designing locally maximally entangled quantum states with arbitrary
local symmetries [0.0]
We show how to design critical states with arbitrarily large local unitary symmetry.
Local symmetries of the designed quantum state are equal to the unitary group of local mode operations acting diagonally on all traps.
arXiv Detail & Related papers (2020-11-08T21:01:23Z) - Gaussian conversion protocols for cubic phase state generation [104.23865519192793]
Universal quantum computing with continuous variables requires non-Gaussian resources.
The cubic phase state is a non-Gaussian state whose experimental implementation has so far remained elusive.
We introduce two protocols that allow for the conversion of a non-Gaussian state to a cubic phase state.
arXiv Detail & Related papers (2020-07-07T09:19:49Z) - Local Unitary Invariants of Quantum States [0.0]
We study the equivalence of mixed states under local unitary transformations.
Based on the coefficient matrices, some invariants are constructed.
This method and results can be extended to multipartite high dimensional system.
arXiv Detail & Related papers (2020-03-24T02:47:53Z) - Gaussian Process States: A data-driven representation of quantum
many-body physics [59.7232780552418]
We present a novel, non-parametric form for compactly representing entangled many-body quantum states.
The state is found to be highly compact, systematically improvable and efficient to sample.
It is also proven to be a universal approximator' for quantum states, able to capture any entangled many-body state with increasing data set size.
arXiv Detail & Related papers (2020-02-27T15:54:44Z) - Genuine Network Multipartite Entanglement [62.997667081978825]
We argue that a source capable of distributing bipartite entanglement can, by itself, generate genuine $k$-partite entangled states for any $k$.
We provide analytic and numerical witnesses of genuine network entanglement, and we reinterpret many past quantum experiments as demonstrations of this feature.
arXiv Detail & Related papers (2020-02-07T13:26:00Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.