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Quantum mechanics, the underlying microscopic theory of our
existence governing the behavior of the physical world, is the
crowning success of human intellect. It is astonishingly successful--
no experiment contradicts the predictions of the theory, and the
theory has been explicitly verified to be correct to a precision better than
1 part in a trillion. In the past 60 years, developments of quantum theory have
led to the modern technology that has revolutionized the world through
applications such as transistors, lasers, and magnetic discs. Despite this
great success we really do not understand the quantum theory in an intuitive
manner because quantum laws are so radically different from the
classical laws of physics. The dichotomy that the modern world is quantum,
but the precise meaning of the quantum remains elusive, disturbed
the stalwarts of physics such as Einstein, Schrodinger, and Feynman,
and continues to baffle physicists even today. This lecture will explore
this curious state of affairs, highlighting the numerous quantum based
ideas and applications which underpin our modern world and the sublime
strangeness of the theory which completely eludes our intuition.
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