Zeno dynamics in quantum open systems
... Quantum Zeno effect (QZE), coined as the Zeno’s paradox in quantum theory, states that an unstable quantum system, if observed continuously, will never decay[1]. Hence we can slow down or even “freeze” the evolution of the system by frequent measurements in its known initial state. QZE is ascribed t ...
... Quantum Zeno effect (QZE), coined as the Zeno’s paradox in quantum theory, states that an unstable quantum system, if observed continuously, will never decay[1]. Hence we can slow down or even “freeze” the evolution of the system by frequent measurements in its known initial state. QZE is ascribed t ...
LS coupling
... Figure 3: Effect of turning on the Hamiltonian Hs−o . Terms are split into terms levels of different J - note the small contributions to the levels from other terms, shown in red. I have only drawn two other terms contributing for convenience, but all other terms will contribute in principle, even f ...
... Figure 3: Effect of turning on the Hamiltonian Hs−o . Terms are split into terms levels of different J - note the small contributions to the levels from other terms, shown in red. I have only drawn two other terms contributing for convenience, but all other terms will contribute in principle, even f ...
New Approach for Finding the Phase Shift Operator via the IWOP
... It is well-known that the theory of the quantum phase is an important topic in quantum optics and quantum statistics. The phases of optical fields play the decisive role in many optical phenomena, particularly in the diffraction and interference of light. The question of defining a quantum phase shi ...
... It is well-known that the theory of the quantum phase is an important topic in quantum optics and quantum statistics. The phases of optical fields play the decisive role in many optical phenomena, particularly in the diffraction and interference of light. The question of defining a quantum phase shi ...
Document
... The theoretical description of tunnel ionization of atoms in an alternating field has long attracted attention.' In a certain sense this task is more promising than that of ionization in the opposite multiphoton case. First, only the initial and final states of the electron are significant in tunnel ...
... The theoretical description of tunnel ionization of atoms in an alternating field has long attracted attention.' In a certain sense this task is more promising than that of ionization in the opposite multiphoton case. First, only the initial and final states of the electron are significant in tunnel ...
Physical Composition
... on the imagination of scientists and philosophers long before they were taken to be practicing separate disciplines. Among rival conceptions of this structure upheld by various pre-Socratic thinkers, it is the atomic hypothesis of Democritus and Leucippus that has had the most lasting influence on t ...
... on the imagination of scientists and philosophers long before they were taken to be practicing separate disciplines. Among rival conceptions of this structure upheld by various pre-Socratic thinkers, it is the atomic hypothesis of Democritus and Leucippus that has had the most lasting influence on t ...
Hidden heat of a particle - Neo
... one must remember that if ρ denotes the density of the fictitious fluid in the hydrodynamical picture of wave propagation − a density that is equal to | ψ(x, y, z, t) |2 in non-relativistic wave mechanics − then one is led to consider that the quantity ρ dτ gives the probability of the presence of t ...
... one must remember that if ρ denotes the density of the fictitious fluid in the hydrodynamical picture of wave propagation − a density that is equal to | ψ(x, y, z, t) |2 in non-relativistic wave mechanics − then one is led to consider that the quantity ρ dτ gives the probability of the presence of t ...
Lecture 6: 3D Rigid Rotor, Spherical Harmonics, Angular Momentum
... electron via an effect known as the Zeeman effect. The number of discrete states observed in the Zeeman effect is related to the orbital angular momentum quantum number l. In a famous experiment by Stern and Gerlach in 1921, where they passed Ag atoms in a magnetic field, they observed that the spli ...
... electron via an effect known as the Zeeman effect. The number of discrete states observed in the Zeeman effect is related to the orbital angular momentum quantum number l. In a famous experiment by Stern and Gerlach in 1921, where they passed Ag atoms in a magnetic field, they observed that the spli ...
Phase-Coherent Transport through a Mesoscopic System: A New Probe V 80, N
... in the Aharonov-Bohm (AB) magnetoconductance oscillations, thereby converting a phase measurement to a multiprobe conductance measurement. The experiments done in weak magnetic field used a ring-shaped semiconductor interferometer as shown schematically in Fig. 1(a). AB oscillations in the conductan ...
... in the Aharonov-Bohm (AB) magnetoconductance oscillations, thereby converting a phase measurement to a multiprobe conductance measurement. The experiments done in weak magnetic field used a ring-shaped semiconductor interferometer as shown schematically in Fig. 1(a). AB oscillations in the conductan ...
Gibbs' paradox and black-hole entropy
... the result of statistical mechanics now coincides with the thermodynamical result ∆S = 0. The fact that there is not an exact coincidence can easily be understood: the term proportional to ln N describes fluctuations. If the partition is removed, fluctuations with larger magnitude than in the presen ...
... the result of statistical mechanics now coincides with the thermodynamical result ∆S = 0. The fact that there is not an exact coincidence can easily be understood: the term proportional to ln N describes fluctuations. If the partition is removed, fluctuations with larger magnitude than in the presen ...
Last section - end of Lecture 4
... future. We have seen how to quantize the theory and make quantum field theoretic predictions within general relativity. The most straightforward amplitudes to calculate are scattering matrix elements - this is what quantum field theory does well. But most applications of general relativity are not s ...
... future. We have seen how to quantize the theory and make quantum field theoretic predictions within general relativity. The most straightforward amplitudes to calculate are scattering matrix elements - this is what quantum field theory does well. But most applications of general relativity are not s ...
量子力學
... 12. Suppose we have two particles, both of mass m, confined in 0 < x < a described by a potential V = 0 for 0 < x < a and V = for x < 0 and x > a. Assume that these two particles are not interacting with each other. Find the ground-state and first excited-state eigenenergies and eigenfunctions, if ...
... 12. Suppose we have two particles, both of mass m, confined in 0 < x < a described by a potential V = 0 for 0 < x < a and V = for x < 0 and x > a. Assume that these two particles are not interacting with each other. Find the ground-state and first excited-state eigenenergies and eigenfunctions, if ...
Non-Equilibrium Quantum Many-Body Systems: Universal Aspects
... ⇒ Exact solution via Bogoliubov transformation to free bosons No time evolution for free bosons (quasiparticles) ...
... ⇒ Exact solution via Bogoliubov transformation to free bosons No time evolution for free bosons (quasiparticles) ...
What every physicist should know about
... where D represents covariant differentiation. Just to make things more familiar, let us go back to the case of flat spacetime (I will work in Euclidean signature to avoid having to keep track of some factors of i ). Let us calculate the probability amplitude for a particle to start at one point x in ...
... where D represents covariant differentiation. Just to make things more familiar, let us go back to the case of flat spacetime (I will work in Euclidean signature to avoid having to keep track of some factors of i ). Let us calculate the probability amplitude for a particle to start at one point x in ...