Mixed states inA−15-structure superconductors: The ultrasonic anomaly observed in the mixed state ofV3Si

1977 ◽  
Vol 15 (7) ◽  
pp. 3339-3352 ◽  
Author(s):  
M. Tachiki ◽  
T. Koyama
Keyword(s):  
Mixed State ◽  
Mixed States

The treatment of mixed states and the risk of switching to depression

2005 ◽  
Vol 20 (2) ◽  
pp. 96-100 ◽  
Author(s):  
Eduard Vieta
Keyword(s):  
Clinical Trials ◽  
Depressive Symptoms ◽  
Mixed State ◽  
Atypical Antipsychotics ◽  
Randomized Clinical Trials ◽  
Mixed States ◽  
Conventional Antipsychotics

AbstractThere are few controlled studies evaluating the treatment of bipolar mixed states. Evidence suggests that mixed states may be more responsive to some anticonvulsants than to lithium. Olanzapine alone or in combination with divalproate or lithium has been adequately evaluated in randomized clinical trials involving mixed-state patients, whereas risperidone and quetiapine have not. There is also some evidence demonstrating the efficacy of ziprasidone and aripiprazole. The risk of switching to depression is high in mixed states. Conventional antipsychotics, such as haloperidol, may be less efficacious at protecting against a switch to depression than atypical antipsychotics, divalproate or lithium. When choosing drugs for the treatment of mania, and especially for the treatment of mixed states, their efficacy against manic and depressive symptoms, and their safety in terms of the risk of switching to depression should be taken into account.

scholarly journals Virtual Correlations in Single Qutrit

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Alexey A. Strakhov ◽  
Vladimir I. Man’ko
Keyword(s):  
Mixed State ◽  
Three Dimensional ◽  
Mixed States ◽  
One To One

We construct the positive invertible map of the mixed states of a single qutrit onto the antisymmetrized bipartite qutrit states (quasifermions). It is shown that using this one-to-one correspondence between qutrit states and states of two three-dimensional quasifermions one may attribute hidden entanglement to a single mixed state of qutrit.

scholarly journals Bounds on Mixed State Entanglement

Entropy ◽  
2020 ◽  
Vol 22 (1) ◽  
pp. 62 ◽  
Author(s):  
Bruno Leggio ◽  
Anna Napoli ◽  
Hiromichi Nakazato ◽  
Antonino Messina
Keyword(s):  
Mixed State ◽  
General Framework ◽  
Quantum Correlations ◽  
Thermal Entanglement ◽  
Mixed States ◽  
Clear Explanation ◽  
Finite Dimensionality ◽  
Partial Transpose ◽  
The Subject

In the general framework of d 1 × d 2 mixed states, we derive an explicit bound for bipartite negative partial transpose (NPT) entanglement based on the mixedness characterization of the physical system. The derived result is very general, being based only on the assumption of finite dimensionality. In addition, it turns out to be of experimental interest since some purity-measuring protocols are known. Exploiting the bound in the particular case of thermal entanglement, a way to connect thermodynamic features to the monogamy of quantum correlations is suggested, and some recent results on the subject are given a physically clear explanation.

Dysphoric mania, mixed states, and mania with mixed features specifier: are we mixing things up?

CNS Spectrums ◽  
2016 ◽  
Vol 22 (2) ◽  
pp. 170-176 ◽  
Author(s):  
Susan L. McElroy ◽  
Paul E. Keck
Keyword(s):  
Depressive Symptoms ◽  
Mixed State ◽  
Mixed States ◽  
Mixed Features

Various terms have been used to describe mania when it is accompanied by depressive symptoms. In this article, we attempt to define and discuss 3 of these terms: dysphoric mania, mixed state, and mania with mixed features specifier. We conclude that whatever term is used, it is important to be aware that mania is more often unpleasant than pleasant, and that the unpleasantness is not limited to depression.

GEOMETRIC PHASES OF PURE AND MIXED STATES

COSMOS ◽  
2006 ◽  
Vol 02 (01) ◽  
pp. 81-100
Author(s):  
R. RAVISHANKAR ◽  
J. F. DU
Keyword(s):  
Experimental Measurement ◽  
Mixed State ◽  
Geometric Phase ◽  
Mixed States ◽  
Geometric Phases

The purpose of this article is to review the literature for pure and mixed state geometric phase and also the experimental measurement of the phase using NMR.

scholarly journals Teleportation via maximally and non-maximally entangled mixed states

2010 ◽  
Vol 10 (5&6) ◽  
pp. 398-419
Author(s):  
S. Adhikari ◽  
A.S. Majumdar ◽  
S. Roy ◽  
B. Ghosh ◽  
N. Nayak
Keyword(s):  
Mixed State ◽  
Quantum Teleportation ◽  
Convex Combination ◽  
Type Inequality ◽  
Entangled States ◽  
Mixed States ◽  
Werner State ◽  
Parameter Values

We study the efficiency of two-qubit mixed entangled states as resources for quantum teleportation. We first consider two maximally entangled mixed states, viz., the Werner state\cite{werner}, and a class of states introduced by Munro {\it et al.} \cite{munro}. We show that the Werner state when used as teleportation channel, gives rise to better average teleportation fidelity compared to the latter class of states for any finite value of mixedness. We then introduce a non-maximally entangled mixed state obtained as a convex combination of a two-qubit entangled mixed state and a two-qubit separable mixed state. It is shown that such a teleportation channel can outperform another non-maximally entangled channel, viz., the Werner derivative for a certain range of mixedness. Further, there exists a range of parameter values where the former state satisfies a Bell-CHSH type inequality and still performs better as a teleportation channel compared to the Werner derivative even though the latter violates the inequality.

scholarly journals Relevance of rank for a mixed state quantum teleportation resource

2014 ◽  
Vol 14 (13&14) ◽  
pp. 1227-1237
Author(s):  
K.G. Paulson ◽  
S.V.M. Satyanarayana
Keyword(s):  
Lower Bound ◽  
Mixed State ◽  
Upper Bound ◽  
Quantum Teleportation ◽  
Low Rank ◽  
Entangled States ◽  
Mixed States ◽  
Logarithmic Negativity ◽  
Higher Rank ◽  
Fidelity Measures

Mixed entangled states are generic resource for quantum teleportation. Optimal teleportation fidelity measures the success of quantum teleportation. The relevance of rank in the teleportation process is investigated by constructing three new maximally entangled mixed states (MEMS) of different ranks. Linear entropy, concurrence, optimal teleportation fidelity and Bell function are obtained for each of these states analytically. It is found that mixed states with higher rank are better resource for teleportation. In order to achieve a fixed value of optimal teleportation fidelity, we find that low rank states must have high concurrence. Further, for each of ranks 2, 3 and 4, we numerically generate 30000 maximally entangled mixed states. The analysis of these states reveals the existence of a rank dependent upper bound on optimal teleportation fidelity for a fixed purity. In order to achieve a fixed optimal teleportation fidelity, we find MEMS exhibit a rank dependent lower bound on concurrence. MEMS are classified in terms of their degree of nonlocality. The results are found to be same with logarithmic negativity used as a measure of entanglement.

scholarly journals A simple analysis of the mixed-state information metric in AdS3/CFT2

2019 ◽  
Vol 34 (40) ◽  
pp. 1950334
Author(s):  
Xiao-Bao Xu ◽  
Shan-Quan Lan ◽  
Gu-Qiang Li ◽  
Jie-Xiong Mo
Keyword(s):  
Mixed State ◽  
Mixed States ◽  
Simple Analysis ◽  
Conformal Dimension ◽  
State Information ◽  
Dimension Formula ◽  
Primary Operator ◽  
Information Metric ◽  
Information Metrics ◽  
State Case

We compute the quantum information metrics of a thermal CFT on [Formula: see text] perturbed by the scalar primary operators of conformal dimensions [Formula: see text] = 3, 4, 5, 6. In particular, we assume that the Hamiltonians of the mixed states commute with each other and the temperature is fixed. Under these conditions, the evaluation is analogous to the pure state case. Then we apply the method of A. Trivella [Class. Quantum Grav. 34, 105003 (2017)] to calculate the mixed state information metric for the scalar primary operator of conformal dimension [Formula: see text] = 4 holographically, and reproduce exactly the result in the CFT2 by our approach.

scholarly journals Mixed affective states; a study within a community mental health team with treatment recommendations

2011 ◽  
Vol 26 (S2) ◽  
pp. 188-188
Author(s):  
M. Agius ◽  
S. Singh ◽  
J. Ho ◽  
R. Zaman
Keyword(s):  
Mental Health ◽  
Community Mental Health ◽  
Mixed State ◽  
Suicide Risk ◽  
Strong Predictor ◽  
Mixed States ◽  
Community Mental Health Team ◽  
Duration Of Treatment ◽  
Mental Health Team ◽  
Health Team

IntroductionAgitated Unipolar Depression and Bipolar mixed states combine depressive and manic symptoms, reflecting severe forms of affective disorders with an increased suicide risk. These states have not been defined with adequate consensus and hence present a diagnostic and therapeutic challenge.MethodWe searched the records of patients with Affective Mixed States in a community Mental Health Team to identify patients with affective mixed states.We assessed the treatments prescribed and the time it took to treat the Mixed states so that they then suffered from depression or were euthymic.ResultsTen out of 17 patients were suicidal when experiencing a mixed state. Of the 6 patients that were agitated, 5 were suicidal. Best results were achieved with a combination of -Reducing antidepressant -Increasing mood stabilisers (Depakote, Lithium) -Increasing/adding atypical antipsychotics. With such treatment, the average duration to resolution was 2.5 weeks. The worse results were achieved by adding antidepressants to a patient experiencing low mood with a mixed state such treatment led to resolution in 10 weeksDiscussionAgitation is a strong predictor of suicide risk. Reducing antidepressants is important thus Increasing/adding antipsychotics and mood stabilisers without changing antidepressants led to an 8.5 weeks duration of treatment.ConclusionPatients with mixed states should be reviewed regularly and risk-assessed -We suggest weekly due to increased suicide risk. With very high-risk patients, referral should be made to the Crisis Team. Care coordinators should be involved for regular contact with services.

scholarly journals MIXED STATE ENTANGLEMENT MEASURES FOR INTERMEDIATE SEPARABILITY

2010 ◽  
Vol 08 (04) ◽  
pp. 677-685 ◽  
Author(s):  
TSUBASA ICHIKAWA ◽  
MARCUS HUBER ◽  
PHILIPP KRAMMER ◽  
BEATRIX C. HIESMAYR
Keyword(s):  
Lower Bound ◽  
Quantum State ◽  
Mixed State ◽  
Building Blocks ◽  
Mixed States ◽  
Entanglement Measures

To determine whether a given multipartite quantum state is separable with respect to some partition, we construct a family of entanglement measures {Rm(ρ)}. This is done utilizing generalized concurrences as building blocks which are defined by flipping of M constituents and indicate states that are separable with regard to bipartitions when vanishing. Furthermore, we provide an analytically computable lower bound for {Rm(ρ)} via a simple ordering relation of the convex roof extension. Using the derived lower bound, we illustrate the effect of the isotropic noise on a family of four-qubit mixed states for each intermediate separability.

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