Quantum Probabilities and Maximum Entropy
نویسنده
چکیده
Probabilities in quantum physics can be shown to originate from a maximum entropy principle.
منابع مشابه
Entropic Updating of Probabilities and Density Matrices
We find that the standard relative entropy and the Umegaki entropy are designed for the purpose of inferentially updating probabilities and density matrices, respectively. From the same set of inferentially guided design criteria, both of the previously stated entropies are derived in parallel. This formulates a quantum maximum entropy method for the purpose of inferring density matrices in the...
متن کاملDeriving the Qubit from Entropy Principles
We provide an axiomatization of the simplest quantum system, namely the qubit, based on entropic principles. Specifically, we show: The qubit can be derived from the set of maximumentropy probabilities that satisfy an entropic version of the Heisenberg uncertainty principle. Our formulation is in phase space (following Wigner [41]) and makes use of Rényi [32] entropy (which includes Shannon [33...
متن کاملCoherent Control of Quantum Entropy via Quantum Interference in a Four-Level Atomic System
The time evaluation of quantum entropy in a four-level double- type atomic system is theoretically investigated. Quantum entanglement of the atom and its spontaneous emission fields is then discussed via quantum entropy. It is found that the degree of entanglement can be increased by the quantum interference induced by spontaneous emission. The phase dependence of the atom-field entanglement is...
متن کاملVoltage-Controlled Entanglement between Quantum- Dot Molecule and its Spontaneous Emission Fields via Quantum Entropy
The time evolution of the quantum entropy in a coherently driven threelevel quantum dot (QD) molecule is investigated. The entanglement of quantum dot molecule and its spontaneous emission field is coherently controlled by the gat voltage and the intensity of applied field. It is shown that the degree of entanglement between a three-level quantum dot molecule and its spontaneous emission fields...
متن کاملUsing Second-Order Probabilities to Make Maximum Entropy Approach to Copulas More Reasonable
Copulas are a general way of describing dependence between two or more random variables. When we only have partial information about the dependence, i.e., when several different copulas are consistent with our knowledge, it is often necessary to select one of these copulas. A frequently used method of selecting this copula is the maximum entropy approach, when we select a copula with the larges...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Entropy
دوره 19 شماره
صفحات -
تاریخ انتشار 2017