Nonlinear Quantum Optics in a Waveguide: Distinct Single Photons Strongly
... four level fine structure of InAs=GaAs quantum dots [16]. While V-type systems [17] are also viable and reveal similar single photon switching behavior, the ladder-type configuration of InAs=GaAs quantum dots is attractive due to large (several nm) wavelength separation between biexciton transitions ...
... four level fine structure of InAs=GaAs quantum dots [16]. While V-type systems [17] are also viable and reveal similar single photon switching behavior, the ladder-type configuration of InAs=GaAs quantum dots is attractive due to large (several nm) wavelength separation between biexciton transitions ...
Schwinger-Dyson operator of Yang-Mills matrix models with ghosts and derivations of the graded shuffle algebra
... inclusion of gauge fixing and ghost terms in the action. More precisely, we show that the left annihilation as well as the Schwinger–Dyson operator S i , satisfy the Leibnitz rule with respect to the (graded) shuffle product of gluon and ghost correlations. The latter allows us to reduce the nonline ...
... inclusion of gauge fixing and ghost terms in the action. More precisely, we show that the left annihilation as well as the Schwinger–Dyson operator S i , satisfy the Leibnitz rule with respect to the (graded) shuffle product of gluon and ghost correlations. The latter allows us to reduce the nonline ...
Quantum Measurement and Control
... relaxed about such issues in order to avoid undue notational complexity. The system state, as we have defined it, represents an observer’s knowledge about the system variables. Unless the probability distribution is non-zero only for a single configuration, we say that it represents a state of uncer ...
... relaxed about such issues in order to avoid undue notational complexity. The system state, as we have defined it, represents an observer’s knowledge about the system variables. Unless the probability distribution is non-zero only for a single configuration, we say that it represents a state of uncer ...
Rewriting measurement-based quantum computations with
... condition.) Our work improves on these methods by verifying that a given pattern is deterministic—i.e. that it is free of programming errors. By working directly with the pattern we can also relax the uniformity restriction and derive correctness proofs in cases where the choice of measurement is si ...
... condition.) Our work improves on these methods by verifying that a given pattern is deterministic—i.e. that it is free of programming errors. By working directly with the pattern we can also relax the uniformity restriction and derive correctness proofs in cases where the choice of measurement is si ...
ABSTRACT PHOTON PAIR PRODUCTION FROM A HOT ATOMIC ENSEMBLE IN THE DIAMOND CONFIGURATION
... take advantage of nonlinear interactions to produce and store non-classical states of light. These technologies will require photon sources that not only generate nonclassical light, but also resonant, narrow band light. Here we investigate a system which could be used as such a source. We take adva ...
... take advantage of nonlinear interactions to produce and store non-classical states of light. These technologies will require photon sources that not only generate nonclassical light, but also resonant, narrow band light. Here we investigate a system which could be used as such a source. We take adva ...
Quantum Nonlinear Optics in Lossy Coupled-Cavities in Photonic Crystal Slabs
... of the high Q and the small V is of great importance in many applications in integrated photonics. There are other optical microcavities that can perform better than PCS microcavities, but only in certain aspects. For example, whispering gallery microtoroids and microspheres can support modes with v ...
... of the high Q and the small V is of great importance in many applications in integrated photonics. There are other optical microcavities that can perform better than PCS microcavities, but only in certain aspects. For example, whispering gallery microtoroids and microspheres can support modes with v ...
Quantum Theory: a Pragmatist Approach
... physical condition. I shall elaborate a version of this view that assigns a two-fold role to the quantum state. It plays its primary role in the algorithm provided by the Born Rule for generating quantum probabilities. The quantum state’s secondary role cannot be so simply described, but here is the ...
... physical condition. I shall elaborate a version of this view that assigns a two-fold role to the quantum state. It plays its primary role in the algorithm provided by the Born Rule for generating quantum probabilities. The quantum state’s secondary role cannot be so simply described, but here is the ...
Nonperturbative quantum geometries
... A nontrivial physical Hilbert space can exist only in the case that the algebra of the quantum mechanical constraints closes. (iv) An inner product (~k[q~) defined on the physical Hilbert space, 5:Phy~. It is important to stress that one need not have any inner product on the larger representation s ...
... A nontrivial physical Hilbert space can exist only in the case that the algebra of the quantum mechanical constraints closes. (iv) An inner product (~k[q~) defined on the physical Hilbert space, 5:Phy~. It is important to stress that one need not have any inner product on the larger representation s ...
IMPRECISE MEASUREMENTS IN QUANTUM MECHANICS
... The most basic situation in physics is the following: we have an object system under investigation, and we try to obtain information about it by making an experiment. As a result of the experiment, measurement outcomes are registered. Quantum mechanics predicts the probabilities of the measurement o ...
... The most basic situation in physics is the following: we have an object system under investigation, and we try to obtain information about it by making an experiment. As a result of the experiment, measurement outcomes are registered. Quantum mechanics predicts the probabilities of the measurement o ...
On the quantum no-signalling assisted zero-error
... such that K(N ) < K. Semidefinite programs [21] can be solved in polynomial time in the program description [22] and there exist several different algorithms employing interior point methods which can compute the optimum value of semidefinite programs efficiently [23], [24]. The CVX software package ...
... such that K(N ) < K. Semidefinite programs [21] can be solved in polynomial time in the program description [22] and there exist several different algorithms employing interior point methods which can compute the optimum value of semidefinite programs efficiently [23], [24]. The CVX software package ...
ψ ε
... comparing the dynamics associated to (1.9) to the free dynamics ei 2 ∆ . In the above fort mula, we have incorporated the information that ei 2 ∆ is unitary on H 1 (Rd ), but not on Σ (see e.g. [13]). We can now state the nonlinear analogue to Theorem 1.3. Since Theorem 1.4 requires d > 3, we natura ...
... comparing the dynamics associated to (1.9) to the free dynamics ei 2 ∆ . In the above fort mula, we have incorporated the information that ei 2 ∆ is unitary on H 1 (Rd ), but not on Σ (see e.g. [13]). We can now state the nonlinear analogue to Theorem 1.3. Since Theorem 1.4 requires d > 3, we natura ...
(Classical) Molecular Dynamics
... • It basically states that good algorithms generate numerical trajectories that are “close to” a REAL trajectory of the manybody system. • Question: Does the Verlet algorithm indeed generate “shadow” trajectories? • In practice, it follows an Hamiltonian, depending on the timeste ...
... • It basically states that good algorithms generate numerical trajectories that are “close to” a REAL trajectory of the manybody system. • Question: Does the Verlet algorithm indeed generate “shadow” trajectories? • In practice, it follows an Hamiltonian, depending on the timeste ...
V. Linetsky, “The Path Integral Approach to Financial Modeling and
... dynamical systems, one can introduce Lagrangian functions and action functionals for financial models. Since financial models are stochastic, expectations of various quantities contingent upon price paths (financial derivatives) are given by path integrals, where the action functional for the underl ...
... dynamical systems, one can introduce Lagrangian functions and action functionals for financial models. Since financial models are stochastic, expectations of various quantities contingent upon price paths (financial derivatives) are given by path integrals, where the action functional for the underl ...
Quantum Teleportation
... with Boris Podolsky and Nathan Rosen, published a paper questioning whether the current theory was adequate to explain all possible observations on the quantum level. In this so-called EPR Paper, the three scientists basically showed that it was possible to measure the quantum state of one particle ...
... with Boris Podolsky and Nathan Rosen, published a paper questioning whether the current theory was adequate to explain all possible observations on the quantum level. In this so-called EPR Paper, the three scientists basically showed that it was possible to measure the quantum state of one particle ...
A blueprint for building a quantum computer
... capable of entangling eight-photon qubit states, and have been shown to perform nontrivial computation over short timescales.40 Both of these approaches do not scale in those forms, but scalable approaches are also under development. Groups headed by Wineland, Monroe, Chuang, and others have demonst ...
... capable of entangling eight-photon qubit states, and have been shown to perform nontrivial computation over short timescales.40 Both of these approaches do not scale in those forms, but scalable approaches are also under development. Groups headed by Wineland, Monroe, Chuang, and others have demonst ...
Continuous Variable Quantum Information: Gaussian States and
... up to unity, yet do not behave entirely as one would expect from probability distributions. In particular, there are (infinitely many) quantum states ρ for which the function Wρs is not a regular probability distribution for some values of s, as it can assume negative values or even be singular in ce ...
... up to unity, yet do not behave entirely as one would expect from probability distributions. In particular, there are (infinitely many) quantum states ρ for which the function Wρs is not a regular probability distribution for some values of s, as it can assume negative values or even be singular in ce ...
Spontaneous Formation of Magnetic Moments and Dephasing in Two-Dimensional Disordered Systems
... A SDFT calculation [44] of a single channel wire reveals the formation of a local moment with a net of one electron spin in the vicinity of the point contact. Later an extensive SDFT calculation [11] in a multi-channel wire in a hetro-structure revealed the formation of self-consistent or emergent l ...
... A SDFT calculation [44] of a single channel wire reveals the formation of a local moment with a net of one electron spin in the vicinity of the point contact. Later an extensive SDFT calculation [11] in a multi-channel wire in a hetro-structure revealed the formation of self-consistent or emergent l ...