A unitary state is a sovereign state governed as a single entity in which the central government is the supreme authority. The central government may create (or abolish) administrative divisions (sub-national units). Such units exercise only the powers that the central government chooses to delegate.
A unitary parliamentary republic refers to a unitary state with a republican form of government in which the political power is vested in and entrusted to the parliament with confidence [clarification needed] by its electorate.
It does this by relating changes in the state of system to the energy in the system (given by an operator called the Hamiltonian). Therefore, once the Hamiltonian is known, the time dynamics are in principle known. All that remains is to plug the Hamiltonian into the Schrödinger equation and solve for the system state as a function of time.
In quantum physics, unitarity is the condition that the time evolution of a quantum state according to the Schrödinger equation is mathematically represented by a unitary operator. This is typically taken as an axiom or basic postulate of quantum mechanics, while generalizations of or departures from unitarity are part of speculations about ...
The post-Soviet states, also known as the former Soviet Union (FSU), the former Soviet Republics and in Russia as the near abroad (Russian: ближнее зарубежье, romanized: blizhneye zarubezhye), are the 15 sovereign states that were union republics of the Soviet Union, which emerged and re-emerged from the Soviet Union following its dissolution in 1991.
The state is the most important actor under realism. It is unitary and autonomous because it speaks and acts with one voice. The power of the state is understood in terms of its military capabilities. A key concept under realism is the international distribution of power referred to as system polarity. Polarity refers to the number of blocs of ...
A state is a centralized political organization that imposes and enforces rules over a population within a territory.There is no undisputed definition of a state. One widely used definition comes from the German sociologist Max Weber: a "state" is a polity that maintains a monopoly on the legitimate use of violence, although other definitions are not uncommon.