pure states
POVMs are equivalent to projections for perfect state exclusion of three pure states in three dimensions
... The first of these consequences correspond to our newfound ability to use results about QCQPs in or- der to obtain new structural results about the perfect exclusion of pure states through projections. One ...
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Theory of variational quantum simulation
... The variational method is a versatile tool for classical simulation of a variety of quantum systems. Great efforts have recently been devoted to its extension to quantum computing for efficiently solving static many-body ...
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Any modification of the Born rule leads to a violation of the purification and local tomography principles
... mixed states are not the reduc- tion of a pure state in a larger ...of pure states and reversible dynamics, and the requirement that the purification principle ...
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Reversible transformations from pure to mixed states and the unique measure of information
... noise pure states by Schuma- cher compression 关 18,19 兴 共 in this paper we have not de- scribed this—we always used noise 兲 ...have pure states for free. From pure states we can ...
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What Does Monogamy in Higher Powers of a Correlation Measure Mean?
... It is well known that classical correlations are infinitely shareable whereas there is a restriction on the share- ability of quantum entanglement amongst the several parts of a multipartite quantum state [1]-[4]. The ...
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A Comparative Study on Correlation Measures of Pure Bipartite States through Incomparability
... a pure bipartite state is uniquely measured by the von-Neumann entropy of its reduced density ...of pure entangled ...entangled pure states, not comparable (satisfies Nielsen’s criteria) to ...
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The geometric measure of entanglement for a symmetric pure state with non-negative amplitudes
... ground states, the possibility of this type of reduction has been ...of pure states (“the set all non-negative states”) on a symmetric Hilbert ...
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On the Problem of Eigenschaften in Quantum and Classical Mechanics
... We argue that in contrast to the classical physics, measurements in quantum mechanics should provide simultaneous information about all relevant rela- tive amplitudes (pure states and the transitions ...
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Comparison of two unknown pure quantum states
... Consider two similar quantum systems (e.g. two elec- tron spins or two photon polarisations.) Both systems are taken to have D dimensional Hilbert spaces, for some D < ∞ . Let both systems be initially prepared in un- ...
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The Energy Conservation Paradox of Quantum Physics
... So, the inherent hallmarks that together constitute the notion of quantum ideal have no niche in whatever autonomic conditions in question. It means that the quantum ideal construction fails as a rigorously defined ...
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Optimal measurements for simultaneous quantum estimation of multiple phases
... A quantum theory of multiphase estimation is crucial for quantum-enhanced sensing and imag- ing and may link quantum metrology to more complex quantum computation and communication protocols. In this letter we tackle one ...
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Monogamy of entanglement without inequalities
... Markov states satisfy the disentan- gling condition for any entanglement mono- ...on pure states, and show that for any quantum state that satisfies the disentangling condition, its entanglement of ...
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Safe uses of Hill's model: an exact comparison with the Adair-Klotz model
... This work can be extended in many ways. First, it should be possible to consider more challenging limits, with larger values of the Hill coefficient and particle copy numbers. Relatively small values for these parameters ...
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Wellens, Thomas (2002): Entanglement and control of quantum states. Dissertation, LMU München: Fakultät für Physik
... defined pure quantum states can be attributed to any of the two subsystems, what obviously prevents our purpose to prepare the photon field in an arbitrary pure quantum ...a pure state [25, 26, ...
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Essentials of Constructive Heterodoxy: Employment
... Section 2 gives the formal description of the most elementary economic configu- ration, that is, the pure consumption economy. From these minimalistic premises follows in Section 3 the interdependence of product ...
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Epitaxial deposition of silver ultra fine nano clusters on defect free surfaces of HOPG derived few layer graphene in a UHV multi chamber by in situ STM, ex situ XPS, and ab initio calculations
... The effect of Ag on the electronic structure of gra- phene was further investigated (Figure 4a, b, c, d). Fig- ure 4a shows the electronic density of states for the pristine graphene. The predicted direct band gap ...
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Essentials of Constructive Heterodoxy: Say’s Law
... This means for our reconstruction that an additional condition is needed and has to be explicitly introduced. It is the following: the business sector increases employ- ment at the going wage rate as long as there is ...
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Signatures of charge noise and its impact on exciton qubits
... the charge environment can be revealed; including how common it is to both qubits. It will be demonstrated that in some regimes it is possible to determine the number of charges and the rate of their fluctuation. For ...
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Necessary and sufficient quantum information characterization of Einstein-Podolsky-Rosen steering
... entangled states are steerable, and not all steerable states exhibit nonlocality [4, 5], but states that exhibit steering allow for the verification of their entanglement in a semi-device independent ...
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MoL 2017 03: Robust self testing of (almost) all pure two qubit states
... entangled states that violate the CHSH inequality but although Alice and Bob can apply any quantum operation, the delity of their state with the singlet will be at most as good as discarding their parts and ...
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