The Impact of Energy Band Diagram and Inhomogeneous
... carriers are fed to the gain region via complex carrier relaxation mechanisms [10]. There is a finite steady-state carrier population of reservoir states so that induced carrier perturbations are distributed over a range of energies and contribute only partially to the gain at the lasing energy. Thi ...
... carriers are fed to the gain region via complex carrier relaxation mechanisms [10]. There is a finite steady-state carrier population of reservoir states so that induced carrier perturbations are distributed over a range of energies and contribute only partially to the gain at the lasing energy. Thi ...
Primitive ontology and quantum state in the GRW matter density theory
... subdivides the first option into two proposals depending on the kind of object that one takes the quantum state to be. Its mathematical representation clearly suggests that it is some kind of field, but it is equally clear that it cannot be an ordinary field on three-dimensional space or four-dimens ...
... subdivides the first option into two proposals depending on the kind of object that one takes the quantum state to be. Its mathematical representation clearly suggests that it is some kind of field, but it is equally clear that it cannot be an ordinary field on three-dimensional space or four-dimens ...
Security of Quantum Bit String Commitment Depends on the
... the protocol is inefficient both in terms of computation and communication. It remains open to find an efficient constructive scheme with those parameters. In contrast, for only two bases, an efficient construction exists and uses the identity and the Hadamard transform as unitaries. From [18] (see ...
... the protocol is inefficient both in terms of computation and communication. It remains open to find an efficient constructive scheme with those parameters. In contrast, for only two bases, an efficient construction exists and uses the identity and the Hadamard transform as unitaries. From [18] (see ...
![arXiv:1310.3262v1 [quant-ph] 11 Oct 2013](http://s1.studyres.com/store/data/017897146_1-7f44e165f08f900df74f4825be2ca4f2-300x300.png)
arXiv:1310.3262v1 [quant-ph] 11 Oct 2013
... Oblivious transfer is a two-party primitive in which Alice begins with a choice bit a ∈ {0, 1} and Bob begins with two data bits x0 , x1 ∈ {0, 1}. The security goals are: 1. Completeness: If both parties are honest then Alice learns the value of xa and neither party aborts. 2. Soundness against chea ...
... Oblivious transfer is a two-party primitive in which Alice begins with a choice bit a ∈ {0, 1} and Bob begins with two data bits x0 , x1 ∈ {0, 1}. The security goals are: 1. Completeness: If both parties are honest then Alice learns the value of xa and neither party aborts. 2. Soundness against chea ...
Quasidistributions in nonlinear quantum optics
... lations of one-fold generating function and the corresponding distributions and moments. As special cases we have well-known results for particular processes when C1 = C2 = D̄12 = 0 (parametric generation and amplification), B2 = C2 = D12 = D̄12 = 0 (sub-harmonic generation), etc. In these processes ...
... lations of one-fold generating function and the corresponding distributions and moments. As special cases we have well-known results for particular processes when C1 = C2 = D̄12 = 0 (parametric generation and amplification), B2 = C2 = D12 = D̄12 = 0 (sub-harmonic generation), etc. In these processes ...
Topos logic in measurement-based quantum computation
... Contextuality also plays a role in measurement-based quantum computation (MBQC). If an MBQC on qubits evaluates a nonlinear Boolean function (in which case the computation is classically universal) with high probability of success, this computation is also contextual [11]. Therefore, for MBQC, conte ...
... Contextuality also plays a role in measurement-based quantum computation (MBQC). If an MBQC on qubits evaluates a nonlinear Boolean function (in which case the computation is classically universal) with high probability of success, this computation is also contextual [11]. Therefore, for MBQC, conte ...
slides
... • It is possible for a clever eavesdropper to learn the key without the knowledge of sender and receiver. Public key algorithms: (RSA, …) Sender and receiver exchange key on public channels The ultimate security is not guaranteed. ...
... • It is possible for a clever eavesdropper to learn the key without the knowledge of sender and receiver. Public key algorithms: (RSA, …) Sender and receiver exchange key on public channels The ultimate security is not guaranteed. ...
Tailoring Quantum Architectures to Implementation Style: A
... Quantum computing is a new computing paradigm that takes advantage of distinctive properties in quantum mechanics. Quantum superposition allows quantum bits (qubits) to represent multiple states simultaneously. Whereas a classical n-bit string may possess exactly one of 2n possible values, a string ...
... Quantum computing is a new computing paradigm that takes advantage of distinctive properties in quantum mechanics. Quantum superposition allows quantum bits (qubits) to represent multiple states simultaneously. Whereas a classical n-bit string may possess exactly one of 2n possible values, a string ...
generalized numerical ranges and quantum error correction
... on a Hilbert space H, which may be infinite dimensional. One can extend the definition of Λk ( A) to A ∈ B(H). If H is infinite dimensional, one may allow k = ∞ by letting Pk be the set of infinite rank orthogonal projections in B(H) in the definition; see [14, 16]. There are a number of reasons to ...
... on a Hilbert space H, which may be infinite dimensional. One can extend the definition of Λk ( A) to A ∈ B(H). If H is infinite dimensional, one may allow k = ∞ by letting Pk be the set of infinite rank orthogonal projections in B(H) in the definition; see [14, 16]. There are a number of reasons to ...
Introduction to Quantum Information Science
... At the turn of the 20th Century physicists were trying to explain a plethora of phenomena and experimental results using classical Newtonian based physics, but were not producing fruitful or satisfactory solutions. Speci cally, the characteristic absorption and emission of electromagnetic waves by a ...
... At the turn of the 20th Century physicists were trying to explain a plethora of phenomena and experimental results using classical Newtonian based physics, but were not producing fruitful or satisfactory solutions. Speci cally, the characteristic absorption and emission of electromagnetic waves by a ...
Toposes and categories in quantum theory and gravity
... In any category, an object T is called a terminal (resp. initial) object if for every object A there is exactly one arrow f : A → T (resp. f : T → A). Any two terminal (resp. initial) objects are isomorphic (two objects A and B in a category are said to be isomorphic if there exists arrows f : A → B ...
... In any category, an object T is called a terminal (resp. initial) object if for every object A there is exactly one arrow f : A → T (resp. f : T → A). Any two terminal (resp. initial) objects are isomorphic (two objects A and B in a category are said to be isomorphic if there exists arrows f : A → B ...
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.