Zobrazeno 1 - 10
of 40 242
pro vyhledávání: '"mixed states"'
Autor:
Faizan, Muhammad, Faryad, Muhammad
We found the quasi inverse of qubit channels as a unitary map, $\mathcal{E}^i$, by minimizing the average trace distance between the input state to the channel and the output of the quasi inverse channel for arbitrary qubit channel $\mathcal{E}$ and
Externí odkaz:
http://arxiv.org/abs/2410.02414
Autor:
Papoff, Francesco, Carroll, Mark Anthony, Lippi, Gian Luca, Oppo, Gian-Luca, D'Alessandro, Giampaolo
We derive a model for a single mode laser that includes all two particle quantum correlations between photons and electrons. In contrast to the predictions of semi-classical models, we find that lasing takes place in the presence of quantum bistabili
Externí odkaz:
http://arxiv.org/abs/2410.00588
Publikováno v:
Adv. Quantum Technol. 2024, 2400245
k-uniform mixed states are a significant class of states characterized by all k-party reduced states being maximally mixed. Novel methodologies are constructed for constructing k-uniform mixed states with the highest possible purity. By using the ort
Externí odkaz:
http://arxiv.org/abs/2408.15515
Autor:
Prlina, Igor
The apparent nonunitary evolution in the black hole information paradox and recent work on describing wavefunction collapse via nonunitary nonlinear stochastic operators has motivated us to analyze whether mixed states can be distinguished from quick
Externí odkaz:
http://arxiv.org/abs/2408.12411
In this study, we enhance the understanding of entanglement transformations and their quantification by extending the concept of Schmidt vector from pure to mixed bipartite states, exploiting the lattice structure of majorization. The Schmidt vector
Externí odkaz:
http://arxiv.org/abs/2407.17199
Autor:
Shi, Xian
The study on the entanglement polygon inequality of multipartite systems has attracted much attention. However, most of the results are on pure states. Here we consider the property for a class of mixed states, which are the reduced density matrices
Externí odkaz:
http://arxiv.org/abs/2407.03972
We introduce a monotone to quantify the amount of non-stabilizerness (or magic for short), in an arbitrary quantum state. The monotone gives a necessary and sufficient criterion for detecting the presence of magic for both pure and mixed states. The
Externí odkaz:
http://arxiv.org/abs/2409.18570
Dynamic quantum phase transitions (DQPT) following quantum quenches exhibit singular behavior of the overlap between the initial and evolved states. Here we present a formalism to incorporate a geometric phase into quench dynamics of mixed quantum st
Externí odkaz:
http://arxiv.org/abs/2407.11809
We propose the convex-roof extension of quantum conditional mutual information ("co(QCMI)") as a diagnostic of long-range entanglement in a mixed state. We focus primarily on topological states subjected to local decoherence, and employ the Levin-Wen
Externí odkaz:
http://arxiv.org/abs/2407.20500
Autor:
Yang, Jing
Given an ensemble of identical pure quantum states that depend on an unknown parameter, recently it was shown that the quantum Fisher information can be losslessly compressed into a subensemble with a much smaller number of samples. However, generali
Externí odkaz:
http://arxiv.org/abs/2405.00405