Add to ORKGWe propose a method for detecting bipartite entanglement in a many-body mixed state based on estimating moments of the partially transposed density matrix. The estimates are obtained by performing local random measurements on the state, followed by postprocessing using the classical shadows framework. Our method can be applied to any quantum system with single-qubit control. We provide a detailed analysis of the required number of experimental runs, and demonstrate the protocol using existing experimental data [Brydges et al., Science 364, 260 (2019)]
The need to retain the relative phases in quantum mechanics implies an addition law parametrized by ...
We show that each entanglement witness detecting given bipartite entangled state provides an estimat...
We propose that the entanglement of mixed states is characterised properly in terms of a probability...
The computable measure of the mixed-state entanglement, the negativity, is shown to admit a clear ge...
It is obtained the general expression of the eigenvalues of $4\times 4$Hermitian and trace-one matri...
We generalize, improve and unify theorems of Rumin, and Maassen–Uffink about classical entropies ass...
This article (for the Oxford Handbook of Philosophy of Physics) focuses on two of the main problems ...
We consider a family of multivariate trace inequalities recently derived by Sutter, Berta, and Tomam...
A problem of density matrix determination in terms of the given angular distribution of decay produc...
The example of nonpositive trace-class Hermitian operator for which Robertson-Schrödinger uncertaint...
Multipartite quantum states constitute the key resource for quantum computation. The understanding o...
Given two density matrices ρ and σ, there are a number of different expressions that reduce to the α...
We provide a class of inequalities for detecting entanglements in multi-mode systems. Necessary cond...
In this letter we discuss a new entanglement measure. It is based on the Hilbert-Schmidt norm of ope...
A further simplification of the argument (giving also optimal dependance in epsilon), appears in arX...
The need to retain the relative phases in quantum mechanics implies an addition law parametrized by ...
We show that each entanglement witness detecting given bipartite entangled state provides an estimat...
We propose that the entanglement of mixed states is characterised properly in terms of a probability...
The computable measure of the mixed-state entanglement, the negativity, is shown to admit a clear ge...
It is obtained the general expression of the eigenvalues of $4\times 4$Hermitian and trace-one matri...
We generalize, improve and unify theorems of Rumin, and Maassen–Uffink about classical entropies ass...
This article (for the Oxford Handbook of Philosophy of Physics) focuses on two of the main problems ...
We consider a family of multivariate trace inequalities recently derived by Sutter, Berta, and Tomam...
A problem of density matrix determination in terms of the given angular distribution of decay produc...
The example of nonpositive trace-class Hermitian operator for which Robertson-Schrödinger uncertaint...
Multipartite quantum states constitute the key resource for quantum computation. The understanding o...
Given two density matrices ρ and σ, there are a number of different expressions that reduce to the α...
We provide a class of inequalities for detecting entanglements in multi-mode systems. Necessary cond...
In this letter we discuss a new entanglement measure. It is based on the Hilbert-Schmidt norm of ope...
A further simplification of the argument (giving also optimal dependance in epsilon), appears in arX...
The need to retain the relative phases in quantum mechanics implies an addition law parametrized by ...
We show that each entanglement witness detecting given bipartite entangled state provides an estimat...
We propose that the entanglement of mixed states is characterised properly in terms of a probability...