What determines the structure of quantum physics?
... of other consistent theories with different measurement statistics. This generates a whole spectrum of possible theories, in which classical and quantum theory emerge just as two special cases. Most astonishingly, various properties thought to be special for quantum theory turn out to be quite gener ...
... of other consistent theories with different measurement statistics. This generates a whole spectrum of possible theories, in which classical and quantum theory emerge just as two special cases. Most astonishingly, various properties thought to be special for quantum theory turn out to be quite gener ...
8 - ijssst
... computational power of a quantum computer. Entanglement is an exclusive quantum observable fact. It is a property of a multi-qubit state space and can be thought of as a resource that the measurement on one qubit will directly affect the other [7]. The process of extracting information from a set of ...
... computational power of a quantum computer. Entanglement is an exclusive quantum observable fact. It is a property of a multi-qubit state space and can be thought of as a resource that the measurement on one qubit will directly affect the other [7]. The process of extracting information from a set of ...
PDF
... a (semi)additive structure, the superpositions characteristic of quantum phenomena can be captured at this abstract level. Moreover, the biproduct structure interacts with the compact-closed structure in a non-trivial fashion. In particular, the distributivity of tensor product over biproduct allows ...
... a (semi)additive structure, the superpositions characteristic of quantum phenomena can be captured at this abstract level. Moreover, the biproduct structure interacts with the compact-closed structure in a non-trivial fashion. In particular, the distributivity of tensor product over biproduct allows ...
- Philsci
... Suppose then that we have an object initially in state Wo = n pn P[n], where each n may be expressed as a linear combination of eigenstates of the observable O of the system that we are interested in (i.e. n = ci i); and a measuring device in Wa = n wn P[m]. Throughout the paper I refer to ...
... Suppose then that we have an object initially in state Wo = n pn P[n], where each n may be expressed as a linear combination of eigenstates of the observable O of the system that we are interested in (i.e. n = ci i); and a measuring device in Wa = n wn P[m]. Throughout the paper I refer to ...
PDF
... Hilbert space. There we showed that the capacity region of the three-party superdense coding channel is defined by the set of rates satisfying the bounds in (5). Second, we studied the capacity of the quantum optical MAC. For coherentstate encoding—i.e., for classical-light source transmitters—we de ...
... Hilbert space. There we showed that the capacity region of the three-party superdense coding channel is defined by the set of rates satisfying the bounds in (5). Second, we studied the capacity of the quantum optical MAC. For coherentstate encoding—i.e., for classical-light source transmitters—we de ...
Dynamical polarizability of atoms in arbitrary light fields
... polarization component of a nonparaxial light beam can lead to significant internal-state decoherence [8,9]. Plasmonically enhanced optical fields [10,11] also have, in general, complex local polarizations. Therefore, the calculation of the resulting optical potentials in all these cases requires a su ...
... polarization component of a nonparaxial light beam can lead to significant internal-state decoherence [8,9]. Plasmonically enhanced optical fields [10,11] also have, in general, complex local polarizations. Therefore, the calculation of the resulting optical potentials in all these cases requires a su ...
Quantum Measurements with Dynamically Bistable Systems
... dropped the term −λ 2 QB ∂P3 ρ̄W /4 which comes from the operator L̂(2) in Eq. (11). One can show that, for typical |δ P| ∼ |η |1/2 , this term leads to corrections ∼ η , λ to ρ̄W . Eq. (20) has a standard form of the equation for classical diffusion in a potential U(δ P), with diffusion coefficient ...
... dropped the term −λ 2 QB ∂P3 ρ̄W /4 which comes from the operator L̂(2) in Eq. (11). One can show that, for typical |δ P| ∼ |η |1/2 , this term leads to corrections ∼ η , λ to ρ̄W . Eq. (20) has a standard form of the equation for classical diffusion in a potential U(δ P), with diffusion coefficient ...
Fault-Tolerant Quantum Computation
... Discovery of the quantum error correction codes gave a huge boost to quantum information field: a single qubit cannot survive decoherence, but a set of qubits can; “together we stand, divided we fall” The propagation of the error is prevented by using fault tolerant recovery after storing or proce ...
... Discovery of the quantum error correction codes gave a huge boost to quantum information field: a single qubit cannot survive decoherence, but a set of qubits can; “together we stand, divided we fall” The propagation of the error is prevented by using fault tolerant recovery after storing or proce ...
Introduction to Quantum Electrodynamics Peter Prešnajder
... we arrive directly at the conjugated Dirac equation (1.36). The conjugated Dirac field transforms under Lorentz transformations as follows: ψ̄(x) = ψ(x)† γ 0 7→ ψ(Λ−1 x)† S † (Λ) γ 0 = ψ̄(Λ−1 x)γ 0 S † (Λ) γ 0 . Expressing S(Λ) = S(exp (− 2i ωµν S µν )) and using γ 0 S µν † γ 0 = − S µν we obtain γ ...
... we arrive directly at the conjugated Dirac equation (1.36). The conjugated Dirac field transforms under Lorentz transformations as follows: ψ̄(x) = ψ(x)† γ 0 7→ ψ(Λ−1 x)† S † (Λ) γ 0 = ψ̄(Λ−1 x)γ 0 S † (Λ) γ 0 . Expressing S(Λ) = S(exp (− 2i ωµν S µν )) and using γ 0 S µν † γ 0 = − S µν we obtain γ ...
Towards ~ Lorentz Invariant Quantum Theory of Measurement
... strating such effects is the so-called SQUID circuit. 4 ...
... strating such effects is the so-called SQUID circuit. 4 ...
quantum-gravity-presentation
... Quantum Gravity: Why so Difficult? • Don’t Buy the Tickets Quite Yet (III) • What Does it Mean to Have an Infinite Series with Terms of Increasing Dimension? • If You “Cutoff” the Series, You Can Apparently Fiddle with the Resulting Equations to Get Something With a Physical Meaning ...
... Quantum Gravity: Why so Difficult? • Don’t Buy the Tickets Quite Yet (III) • What Does it Mean to Have an Infinite Series with Terms of Increasing Dimension? • If You “Cutoff” the Series, You Can Apparently Fiddle with the Resulting Equations to Get Something With a Physical Meaning ...
Density - KSU Web Home
... What is the density (g/cm3) of 48.0 g of a metal if the level of water in a graduated cylinder rises from 25.0 mL to 33.0 mL after the metal is added? Step 1 State the given and needed quantities. Analyze the Problem. ...
... What is the density (g/cm3) of 48.0 g of a metal if the level of water in a graduated cylinder rises from 25.0 mL to 33.0 mL after the metal is added? Step 1 State the given and needed quantities. Analyze the Problem. ...
A reasonable thing that just might work Abstract Daniel Rohrlich
... ∆B∆B 0 can be made as small as desired, for large enough N . On the other hand, the axiom of relativistic causality cannot grant Bob even the slightest indication about both B and B 0 . Hence all we need is that when Bob detects a correlation, it is more likely that Alice measured a than when he det ...
... ∆B∆B 0 can be made as small as desired, for large enough N . On the other hand, the axiom of relativistic causality cannot grant Bob even the slightest indication about both B and B 0 . Hence all we need is that when Bob detects a correlation, it is more likely that Alice measured a than when he det ...
Quantum and Ecosystem Entropies
... specify their dimensions as M 1/4 L2 /T 3 , T M −1/4 , and M 3/4 /L2 , respectively. Equation (2) is consistent with the quarter-power scaling proposed by West et al. (1997). This specific scaling, along with the general issue of appropriateness of allometric equations in biology, are topics of live ...
... specify their dimensions as M 1/4 L2 /T 3 , T M −1/4 , and M 3/4 /L2 , respectively. Equation (2) is consistent with the quarter-power scaling proposed by West et al. (1997). This specific scaling, along with the general issue of appropriateness of allometric equations in biology, are topics of live ...
