High-fidelity Z-measurement error encoding of optical qubits
... states map out two orthogonal great semicircles on the Bloch sphere. For each of these inputs we reconstructed the onequbit density matrix directly for both measurement outcomes on both qubits, i.e., four one-qubit density matrices for each input state. From these density matrices we calculated the ...
... states map out two orthogonal great semicircles on the Bloch sphere. For each of these inputs we reconstructed the onequbit density matrix directly for both measurement outcomes on both qubits, i.e., four one-qubit density matrices for each input state. From these density matrices we calculated the ...
Time in the Weak Value and the Discrete Time Quantum Walk
... Def: Weak measurement is called if a coupling constant with a probe interaction is very small. (Y. Aharonov, D. Albert, and L. Vaidman, Phys. Rev. Lett. 60, 1351 (1988)) ...
... Def: Weak measurement is called if a coupling constant with a probe interaction is very small. (Y. Aharonov, D. Albert, and L. Vaidman, Phys. Rev. Lett. 60, 1351 (1988)) ...
Analysis of a Quantum Error Correcting Code using Quantum
... measurement leads to a probability distribution over configurations, which at the next step reduces probabilistically to one particular configuration. But in order for equivalence of processes to have the crucial property of congruence, the semantics must incorporate a more sophisticated analysis of ...
... measurement leads to a probability distribution over configurations, which at the next step reduces probabilistically to one particular configuration. But in order for equivalence of processes to have the crucial property of congruence, the semantics must incorporate a more sophisticated analysis of ...
Why the Disjunction in Quantum Logic is Not Classical1
... in this situation. So let us correct this error by introducing the measurement : 7 ; that tests the two propositions together, by pouring out the water at both sides at once. The result is then that if we have more than 10 liters at the left, we have less than 10 liters at the right, and if we have ...
... in this situation. So let us correct this error by introducing the measurement : 7 ; that tests the two propositions together, by pouring out the water at both sides at once. The result is then that if we have more than 10 liters at the left, we have less than 10 liters at the right, and if we have ...
Rigorous results in electronic structure calculations
... ×Ψ(x10 , x20 , x3 , . . . , xN ) dx3 · · · xN . The Born-Oppenheimer approximation reduces the problem to find the ground state energy of an N-electron system to the problem of searching the two-electron density matrix which gives the lowest energy expectation value. This problem is also known under ...
... ×Ψ(x10 , x20 , x3 , . . . , xN ) dx3 · · · xN . The Born-Oppenheimer approximation reduces the problem to find the ground state energy of an N-electron system to the problem of searching the two-electron density matrix which gives the lowest energy expectation value. This problem is also known under ...
Comprehending Quantum Theory from Quantum Fields
... By far, the most phenomenal step forward made by QFT is the stunning prediction that the primary ingredient of everything in this universe is present in each element of spacetime of this immensely vast universe [5]. These ingredients are the underlying quantum fields. We also realize that the quantu ...
... By far, the most phenomenal step forward made by QFT is the stunning prediction that the primary ingredient of everything in this universe is present in each element of spacetime of this immensely vast universe [5]. These ingredients are the underlying quantum fields. We also realize that the quantu ...
Statistical Mechanics course 203-24171 Number of points (=pts) indicated in margin. 16.8.09
... (a) Identify the response function for an a component field with a given frequency, Ea (ω), in terms of the conductivity σ(ω) where ja = σ(ω)Ea (assume an isotropic system so that σ(ω) is a scaler). Deduce the energy dissipation rate in terms of σ(ω) and Ea (ω). Compare with Ohm’s law. What is the s ...
... (a) Identify the response function for an a component field with a given frequency, Ea (ω), in terms of the conductivity σ(ω) where ja = σ(ω)Ea (assume an isotropic system so that σ(ω) is a scaler). Deduce the energy dissipation rate in terms of σ(ω) and Ea (ω). Compare with Ohm’s law. What is the s ...
Probing charge fluctuator correlations using quantum dot pairs Purohit, er, tt
... assess what kinds of photon cross-correlation signatures are obtained for different charge fluctuation rates and interaction strengths. As a starting point, we will assume there is a single charge fluctuator that affects each of the two qubits in the same way—i.e., δ11 = δ12 in Eq. (1). We use QD pa ...
... assess what kinds of photon cross-correlation signatures are obtained for different charge fluctuation rates and interaction strengths. As a starting point, we will assume there is a single charge fluctuator that affects each of the two qubits in the same way—i.e., δ11 = δ12 in Eq. (1). We use QD pa ...
ppt - Pavel Stránský
... (given by the sum of all classical periodic orbits and their repetitions) ...
... (given by the sum of all classical periodic orbits and their repetitions) ...
- Philsci
... hypersurfaces along which the successive states of the world are defined. Albert’s requirement (i) of separability is, therefore, too strong. An account of the world unfolding along some foliation may be reducible to an account of pointlike bits of the world unfolding along their worldlines, but it ...
... hypersurfaces along which the successive states of the world are defined. Albert’s requirement (i) of separability is, therefore, too strong. An account of the world unfolding along some foliation may be reducible to an account of pointlike bits of the world unfolding along their worldlines, but it ...
Probability in the Many-Worlds Interpretation of Quantum Mechanics
... Locality provides: Outcomes of local experiments depend only on local values of the wave function. Causality of relativistic quantum theory yields: Any action in a space-like separated region cannot influence an outcome of local experiment. From this it follows that Bob should assign probability pye ...
... Locality provides: Outcomes of local experiments depend only on local values of the wave function. Causality of relativistic quantum theory yields: Any action in a space-like separated region cannot influence an outcome of local experiment. From this it follows that Bob should assign probability pye ...
Spectral Analysis of Nonrelativistic Quantum Electrodynamics
... operator, [V ψ](x, σ) := V (x)ψ(x, σ). Moreover, the Z2 factor in the definition of Hel accounts for the spin of the electron. Under the assumption that V ∈ L2 ∩ L∞ (R3 ; R), the Hamiltonian Hel is selfadjoint on the standard Sobolev space, H2 (R3 × Z2 ) ⊆ L2 (R3 × Z2 ), the domain dom(−∆x ) of self ...
... operator, [V ψ](x, σ) := V (x)ψ(x, σ). Moreover, the Z2 factor in the definition of Hel accounts for the spin of the electron. Under the assumption that V ∈ L2 ∩ L∞ (R3 ; R), the Hamiltonian Hel is selfadjoint on the standard Sobolev space, H2 (R3 × Z2 ) ⊆ L2 (R3 × Z2 ), the domain dom(−∆x ) of self ...
Atomic motion in laser light
... a fully quantum treatment of both internal and external atomic degrees of freedom, based on the use of the Wigner transform of the atomic density matrix. Under some conditions, it is possible to eliminate, from the master equation describing the atomic dynamics, al1 the internal atomic variables and ...
... a fully quantum treatment of both internal and external atomic degrees of freedom, based on the use of the Wigner transform of the atomic density matrix. Under some conditions, it is possible to eliminate, from the master equation describing the atomic dynamics, al1 the internal atomic variables and ...
Heriot-Watt University Free-Space Quantum Signatures Using
... Digital signatures guarantee the authorship of electronic communications. Currently used “classical” signature schemes rely on unproven computational assumptions for security, while quantum signatures rely only on the laws of quantum mechanics to sign a classical message. Previous quantum signature ...
... Digital signatures guarantee the authorship of electronic communications. Currently used “classical” signature schemes rely on unproven computational assumptions for security, while quantum signatures rely only on the laws of quantum mechanics to sign a classical message. Previous quantum signature ...
Spin-polarized transport through two quantum dots Interference and Coulomb correlation effects P.
... calculate the higher order Green functions from the corresponding equations of motion. The average values of the occupation numbers (which enter the expressions for the Green functions) and the Green functions have been calculated self-consistently. In section 2, we briefly describe the model as wel ...
... calculate the higher order Green functions from the corresponding equations of motion. The average values of the occupation numbers (which enter the expressions for the Green functions) and the Green functions have been calculated self-consistently. In section 2, we briefly describe the model as wel ...