Subjective Bayesian probabilities
... an insider attack on classical coin tossing can never be ruled out, whereas the beliefs that lead to a pure-state assignment are inconsistent with any other party’s being able to launch an insider attack. ...
... an insider attack on classical coin tossing can never be ruled out, whereas the beliefs that lead to a pure-state assignment are inconsistent with any other party’s being able to launch an insider attack. ...
An Accidental Relationship Between a Relative Quantum
... Concurrence and other measures of entanglement, being nonlinear functions of the density operator, can not be directly measured. Therefore, the search of observables related to entanglement, including entanglement witnesses, is an important goal. In this paper we show a result in that direction. For ...
... Concurrence and other measures of entanglement, being nonlinear functions of the density operator, can not be directly measured. Therefore, the search of observables related to entanglement, including entanglement witnesses, is an important goal. In this paper we show a result in that direction. For ...
Management of the Angular Momentum of Light: Preparation of
... diverse as biosciences [4] and micromechanics [5]. The angular momentum of light can also be used to encode quantum information that is carried by the corresponding photon states [6]. In this regard, exploitation of the orbital contribution to the angular momentum opens the door to the generation an ...
... diverse as biosciences [4] and micromechanics [5]. The angular momentum of light can also be used to encode quantum information that is carried by the corresponding photon states [6]. In this regard, exploitation of the orbital contribution to the angular momentum opens the door to the generation an ...
Quantum error correcting codes and Weyl commutation relations
... determines a nondegenerate symmetric bicharacter and W ((a1 , b1 ), (a2 , b2 )) = W (a1 , a2 ) ⊗ W (b1 , b2 ), (ai , bi ) ∈ A × B, i = 1, 2, determines the Weyl operators for A × B where L2 (A × B) is naturally identified with L2 (A) ⊗ L2 (B). We shall use all these basic properties of the Weyl oper ...
... determines a nondegenerate symmetric bicharacter and W ((a1 , b1 ), (a2 , b2 )) = W (a1 , a2 ) ⊗ W (b1 , b2 ), (ai , bi ) ∈ A × B, i = 1, 2, determines the Weyl operators for A × B where L2 (A × B) is naturally identified with L2 (A) ⊗ L2 (B). We shall use all these basic properties of the Weyl oper ...
Isometric and unitary phase operators: explaining the Villain transform
... spin-wave theory and related to a phase representation of creation and annihilation operators of bosons (photons) introduced by Bialynicki-Birula [2], as explained below. In classical physics a localized or convergent light beam is obtained by superposing plane waves with well-defined phase relation ...
... spin-wave theory and related to a phase representation of creation and annihilation operators of bosons (photons) introduced by Bialynicki-Birula [2], as explained below. In classical physics a localized or convergent light beam is obtained by superposing plane waves with well-defined phase relation ...
NUCLEAR PHYSICS
... electron is defined by its wave function, a complex-valued function of space and time. According to the Copenhagen interpretation of quantum mechanics, the position of a particular electron is not well defined until an act of measurement causes it to be detected. The probability that the act of meas ...
... electron is defined by its wave function, a complex-valued function of space and time. According to the Copenhagen interpretation of quantum mechanics, the position of a particular electron is not well defined until an act of measurement causes it to be detected. The probability that the act of meas ...
Reachable set of open quantum dynamics for a single
... the dissipation. This assumption is widely met in various physical systems, for example, in nuclear magnetic resonance, the time scale for control is ∼10−3 s while the time scale for dissipation is ∼1 s. Under this assumption, the reachable set of the density matrix is completely captured by its dia ...
... the dissipation. This assumption is widely met in various physical systems, for example, in nuclear magnetic resonance, the time scale for control is ∼10−3 s while the time scale for dissipation is ∼1 s. Under this assumption, the reachable set of the density matrix is completely captured by its dia ...
Lecture notes
... meaning. It is obvious that any property or feature of reality ‘out there’ can only be based on information we receive. There cannot be any statement whatsoever about the world or about reality that is not based on such information. It therefore follows that the concept of a reality without at least ...
... meaning. It is obvious that any property or feature of reality ‘out there’ can only be based on information we receive. There cannot be any statement whatsoever about the world or about reality that is not based on such information. It therefore follows that the concept of a reality without at least ...
Quantum Theory 1 - Home Exercise 6
... (d) Find hxi(t) and hpi(t) . Notice that while these are periodic, they are very different from the classical results. Discuss the reasons for this difference. 4. Consider an infinite square well of width L, with a particle of mass m moving in it (− L2 < x< ...
... (d) Find hxi(t) and hpi(t) . Notice that while these are periodic, they are very different from the classical results. Discuss the reasons for this difference. 4. Consider an infinite square well of width L, with a particle of mass m moving in it (− L2 < x< ...
uncertainty: einstein, heisenberg, bohr, and the struggle for the soul
... atoms, influences their absorption and emission of light, and also transports energy between them. In addition, electrons were now to be seen not as orbiting nuclei in the atom, but as "virtual oscillators," each one corresponding to a particular spectroscopic line. However, contrary to classical ph ...
... atoms, influences their absorption and emission of light, and also transports energy between them. In addition, electrons were now to be seen not as orbiting nuclei in the atom, but as "virtual oscillators," each one corresponding to a particular spectroscopic line. However, contrary to classical ph ...
Undergraduate Laboratories Using Correlated Photons: Experiments on the Fundamentals of Quantum Physics
... the interferometer vertically polarized. The predicted probability is P = 1/2, independent of the arm-length difference. There is no interference. This is because the paths are now distinguishable. The circles in Figure 3 represent our measurements for this case. We note that we did not measure the ...
... the interferometer vertically polarized. The predicted probability is P = 1/2, independent of the arm-length difference. There is no interference. This is because the paths are now distinguishable. The circles in Figure 3 represent our measurements for this case. We note that we did not measure the ...
A Post Processing Method for Quantum Prime Factorization
... calculations on complex variables and the point is that we must have high calculating accuracy. B. In a classic computer the smallest unit for saving data is a bit but at Quantum physics the smallest unit for saving data is a qubit then I have to simulate qubit by a class named Qubit. Qubit variable ...
... calculations on complex variables and the point is that we must have high calculating accuracy. B. In a classic computer the smallest unit for saving data is a bit but at Quantum physics the smallest unit for saving data is a qubit then I have to simulate qubit by a class named Qubit. Qubit variable ...
Q 18.1–18.7 - DPG
... setup to study aspects of collective behavior over a wide range of coupling parameters. We show that this fundamental setup can distinctly exceed the free-space superradiant behavior, what we call hyperradiance. The phenomenon is accompanied by strong quantum fluctuations and thus cannot be describe ...
... setup to study aspects of collective behavior over a wide range of coupling parameters. We show that this fundamental setup can distinctly exceed the free-space superradiant behavior, what we call hyperradiance. The phenomenon is accompanied by strong quantum fluctuations and thus cannot be describe ...
Lecture 22 Relevant sections in text: §3.1, 3.2 Rotations in quantum mechanics
... Now we will discuss what the preceding considerations have to do with quantum mechanics. In quantum mechanics transformations in space and time are “implemented” or “represented” by unitary transformations on the Hilbert space for the system. The idea is that if you apply some transformation to a ph ...
... Now we will discuss what the preceding considerations have to do with quantum mechanics. In quantum mechanics transformations in space and time are “implemented” or “represented” by unitary transformations on the Hilbert space for the system. The idea is that if you apply some transformation to a ph ...