Continuous Quantum Phase Transitions
... continuous phase transitions continue to be a subject of great interest to physicists. The appeal of the subject is twofold. First, the list of systems that exhibit interesting phase transitions continues to expand; it now includes the Universe itself! Second, the formal theory of equilibrium phase ...
... continuous phase transitions continue to be a subject of great interest to physicists. The appeal of the subject is twofold. First, the list of systems that exhibit interesting phase transitions continues to expand; it now includes the Universe itself! Second, the formal theory of equilibrium phase ...
Contradiction of quantum mechanics with local hidden variables for
... original argument of EPR considered position and momentum measurements which could be performed on each of two particles at spatially separated locations. Bell 关2兴 later showed that the predictions of quantum mechanics are incompatible with the premises of local realism 共or local hidden variable the ...
... original argument of EPR considered position and momentum measurements which could be performed on each of two particles at spatially separated locations. Bell 关2兴 later showed that the predictions of quantum mechanics are incompatible with the premises of local realism 共or local hidden variable the ...
A Quantum Structure Description of the Liar Paradox∗
... and falsehood of a sentence on the cognitive interaction with the cognitive person. Reading a sence, or with other words ‘making a sentence true or false’ will be modeled as ‘performing a measurement’ on the sentence within the cognitive layer of reality. This means that in our description a sentenc ...
... and falsehood of a sentence on the cognitive interaction with the cognitive person. Reading a sence, or with other words ‘making a sentence true or false’ will be modeled as ‘performing a measurement’ on the sentence within the cognitive layer of reality. This means that in our description a sentenc ...
A Quantum Structure Description of the Liar Paradox
... and falsehood of a sentence on the cognitive interaction with the cognitive person. Reading a sence, or with other words ‘making a sentence true or false’ will be modeled as ‘performing a measurement’ on the sentence within the cognitive layer of reality. This means that in our description a sentenc ...
... and falsehood of a sentence on the cognitive interaction with the cognitive person. Reading a sence, or with other words ‘making a sentence true or false’ will be modeled as ‘performing a measurement’ on the sentence within the cognitive layer of reality. This means that in our description a sentenc ...
Direct characterization of quantum dynamics
... dynamics of arbitrary quantum systems using QED. And, providing the answer is affirmative, how the physical resources scale with system size. Moreover, one would like to understand whether entanglement plays a fundamental role, and what potential applications emerge from such a theory linking QPT an ...
... dynamics of arbitrary quantum systems using QED. And, providing the answer is affirmative, how the physical resources scale with system size. Moreover, one would like to understand whether entanglement plays a fundamental role, and what potential applications emerge from such a theory linking QPT an ...
An Order-Theoretic Quantification of Contextuality
... ordering relation of mappings based on how informative each mapping is relative to the others, i.e., we seek to essentially rank these mappings. For example, (1) tells us that σ is more informative than ρ and, thus, essentially ranks ρ and σ according to the information that they provide. Consider a ...
... ordering relation of mappings based on how informative each mapping is relative to the others, i.e., we seek to essentially rank these mappings. For example, (1) tells us that σ is more informative than ρ and, thus, essentially ranks ρ and σ according to the information that they provide. Consider a ...
Large quantum superpositions of a levitated nanodiamond through spin-optomechanical coupling
... the component state |+1|Dm /2nm to |0|Dm /2nm without affecting |−1|−Dm /2nm , and then another pulse to transfer |−1|−Dm /2nm to ±|0|−Dm /2nm . After the two pulses, the spin state gets disentangled and the position of the diamond is prepared in the quantum superposition state |ψ± nm . T ...
... the component state |+1|Dm /2nm to |0|Dm /2nm without affecting |−1|−Dm /2nm , and then another pulse to transfer |−1|−Dm /2nm to ±|0|−Dm /2nm . After the two pulses, the spin state gets disentangled and the position of the diamond is prepared in the quantum superposition state |ψ± nm . T ...
Quantum Spin Hall Effect and their Topological Design of Devices
... scopes to the time reversal symmetry, relating the periodicity with the time reversal symmetry of these insulator design. As was mentioned in the section the design of the topological insulator must contemplate the necessity of a topological surface theory based in certain symmetry respect to invari ...
... scopes to the time reversal symmetry, relating the periodicity with the time reversal symmetry of these insulator design. As was mentioned in the section the design of the topological insulator must contemplate the necessity of a topological surface theory based in certain symmetry respect to invari ...
Introduction to quantum statistical thermodynamics by Armen
... including a pure state |ψ⟩⟨ψ|, describes an ensemble of identically prepared systems. For instance, in an ideal SternGerlach experiment all particles of the upper beam together are described by the wavefunction | ↑⟩ or the pure density matix | ↑⟩⟨↑ |. The description is optimal, in the sense that al ...
... including a pure state |ψ⟩⟨ψ|, describes an ensemble of identically prepared systems. For instance, in an ideal SternGerlach experiment all particles of the upper beam together are described by the wavefunction | ↑⟩ or the pure density matix | ↑⟩⟨↑ |. The description is optimal, in the sense that al ...
Ex. = 1s 1 , 0 to (1-1)
... she would know it was my sister who did it, not me. 3. I would like for her to get rid of those invisible eyes on the back of her head. ...
... she would know it was my sister who did it, not me. 3. I would like for her to get rid of those invisible eyes on the back of her head. ...
Quantum Computation and Quantum Information
... This book is in copyright. Subject to statutory exception and to the provisions of relevant collective licensing agreements, no reproduction of any part may take place without the written permission of Cambridge University Press. ...
... This book is in copyright. Subject to statutory exception and to the provisions of relevant collective licensing agreements, no reproduction of any part may take place without the written permission of Cambridge University Press. ...
61, 062310 (2000)
... postselection of the measurement results. They showed that a set of nonorthogonal but linear-independent pure states can be faithfully cloned with optimal success probability. Recently, Chelfes and Barnett 关17兴 presented the idea of hybrid cloning, which interpolates between deterministic and probab ...
... postselection of the measurement results. They showed that a set of nonorthogonal but linear-independent pure states can be faithfully cloned with optimal success probability. Recently, Chelfes and Barnett 关17兴 presented the idea of hybrid cloning, which interpolates between deterministic and probab ...
![arXiv:0803.3834v2 [quant-ph] 26 May 2009](http://s1.studyres.com/store/data/015940141_1-1e8e53e4d619ce68a74ed7b6b3742d1d-300x300.png)
arXiv:0803.3834v2 [quant-ph] 26 May 2009
... where the index 1 and 2 refer to particles 1 and 2 respectively. There is no question as to how to calculate the expectation values in quantum mechanics, but if we think in terms of the vector model we are in trouble since we have to add two vectors that are a mixture of projections and fluctuations ...
... where the index 1 and 2 refer to particles 1 and 2 respectively. There is no question as to how to calculate the expectation values in quantum mechanics, but if we think in terms of the vector model we are in trouble since we have to add two vectors that are a mixture of projections and fluctuations ...
Quantum computing
Quantum computing studies theoretical computation systems (quantum computers) that make direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors. Whereas digital computers require data to be encoded into binary digits (bits), each of which is always in one of two definite states (0 or 1), quantum computation uses quantum bits (qubits), which can be in superpositions of states. A quantum Turing machine is a theoretical model of such a computer, and is also known as the universal quantum computer. Quantum computers share theoretical similarities with non-deterministic and probabilistic computers. The field of quantum computing was initiated by the work of Yuri Manin in 1980, Richard Feynman in 1982, and David Deutsch in 1985. A quantum computer with spins as quantum bits was also formulated for use as a quantum space–time in 1968.As of 2015, the development of actual quantum computers is still in its infancy, but experiments have been carried out in which quantum computational operations were executed on a very small number of quantum bits. Both practical and theoretical research continues, and many national governments and military agencies are funding quantum computing research in an effort to develop quantum computers for civilian, business, trade, and national security purposes, such as cryptanalysis.Large-scale quantum computers will be able to solve certain problems much more quickly than any classical computers that use even the best currently known algorithms, like integer factorization using Shor's algorithm or the simulation of quantum many-body systems. There exist quantum algorithms, such as Simon's algorithm, that run faster than any possible probabilistic classical algorithm.Given sufficient computational resources, however, a classical computer could be made to simulate any quantum algorithm, as quantum computation does not violate the Church–Turing thesis.