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3 days ago · Depolarizing is a non-unitary transformation on a quantum system which maps pure states to mixed states. This is a non-unitary process because any transformation that reverses this process will map states out of their respective Hilbert space thus not preserving positivity (i.e. the original probabilities are mapped to negative probabilities ...
1 day ago · Proclaiming a unitary state and a gradual but limited British-style parliamentary system, the new rulers also protected princes and landed gentry as a feudal safeguard against future unrest. [147] [148] In the decades following, public life gradually emerged all over India, leading eventually to the founding of the Indian National Congress in 1885.
1 day ago · United States is a vast and diverse country in North America, with a rich history, a global influence, and a variety of natural and cultural attractions. Learn more about its geography, flag, population, and major cities, such as the capital Washington, D.C., where you can explore the monuments and museums that showcase the nation's heritage.
23 hours ago · Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 states and the Federal District. It is the only country in the Americas to have Portuguese as an official language.
23 hours ago · As governed by the Holy See, Vatican City State is an ecclesiastical or sacerdotal - monarchical state ruled by the Pope, who is the bishop of Rome and head of the Catholic Church. [6] [22] The highest state functionaries are all Catholic clergy of various origins.
3 days ago · Sexual orientation is an enduring personal pattern of romantic attraction or sexual attraction (or a combination of these) to persons of the opposite sex or gender, the same sex or gender, or to both sexes or more than one gender. Patterns are generally categorized under heterosexuality, homosexuality, and bisexuality, [1] [2] [3] while ...
1 day ago · Jamaica ( / dʒəˈmeɪkə / ⓘ jə-MAY-kə; Jamaican Patois: Jumieka [dʒʌˈmie̯ka]) is an island country in the Caribbean Sea and the West Indies. At 10,990 square kilometres (4,240 sq mi), it is the third largest island—after Cuba and Hispaniola —of the Greater Antilles and the Caribbean. [11] Jamaica lies about 145 km (90 mi) south ...
