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Perseus and Medusa – bronze statue by Hubert Gerhard (c. 1590) Medusa (oil on canvas) by Caravaggio (1597) Head of Medusa, by Peter Paul Rubens (1618) Medusa (marble bust) by Gianlorenzo Bernini (1630s) Medusa is played by a countertenor in Jean-Baptiste Lully and Philippe Quinault's opera, Persée (1682). She sings the aria "J'ay perdu la ...
In the era of the old quantum theory, starting from Max Planck's proposal of quanta in his model of blackbody radiation (1900) and Albert Einstein's adaptation of the concept to explain the photoelectric effect (1905), and until Erwin Schrödinger published his eigenfunction equation in 1926, [1] the concept behind quantum numbers developed based on atomic spectroscopy and theories from ...
If the three bit flip group (1,2,3), (4,5,6), and (7,8,9) are considered as three inputs, then the Shor code circuit can be reduced as a sign flip code. This means ...
The triangle-finding problem is the problem of determining whether a given graph contains a triangle (a clique of size 3). The best-known lower bound for quantum algorithms is (), but the best algorithm known requires O(N 1.297) queries, [31] an improvement over the previous best O(N 1.3) queries. [21] [32]
This leads to a constraint that α 2 + β 2 = 1; more generally the sum of the squared moduli of the probability amplitudes of all the possible states is equal to one. If to understand "all the possible states" as an orthonormal basis, that makes sense in the discrete case, then this condition is the same as the norm-1 condition explained above.
Quantum programming is the process of designing or assembling sequences of instructions, called quantum circuits, using gates, switches, and operators to manipulate a quantum system for a desired outcome or results of a given experiment.
Quantum spacetimes are often described mathematically using the noncommutative geometry of Connes, quantum geometry, or quantum groups.. Any noncommutative algebra with at least four generators could be interpreted as a quantum spacetime, but the following desiderata have been suggested:
Medusa, or sometimes referred to as The Head of Medusa, was created c.1618 using oil on canvas and is 68.5 x 118 cm. [5] Rubens enlisted the help of Frans Snyders who worked with him multiple times. Snyders was a nature artist and worked with Rubens to paint animals in his pieces, such as the snakes in Medusa. [ 5 ]