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<h2><strong>Quantum Entanglement</strong></h2> <p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Quantum entanglement is a physical phenomenon which occurs when pairs or groups of particles are generated, interact, or share spatial proximity in ways such that the quantum state of each particle cannot be described independently of the state of the other(s), even when the particles are separated by a large distance instead, a quantum state must be described for the system as a whole.</p> <p>Entanglement is considered fundamental to quantum mechanics, even though it wasn't recognized in the beginning. Quantum entanglement has been demonstrated experimentally with photons, neutrinos, electrons, molecules as large as buckyballs, and even small diamonds. The utilization of entanglement in communication and computation is a very active area of research.</p> <h2><strong>Experiment</strong></h2> <p>The project is an experiment designed to demonstrate the awesome phenomena of quantum entanglement. The main motive behind this project is to dive more into the upcoming technology (Quantum Computing).</p> <p>The experiment was done on the ibmqx4 processor and below are the conditions, circuit design and results of the experiment.</p> <pre class="highlight"><code> Fridge Temperature: 0.021 K CX1_0 e10g: 0.020879330190374218 CX2_0 e20g: 0.030852842357433602 CX2_1 e21g: 0.031057102007703175 CX3_2 e32g: 0.07898418921067885 CX3_4 e34g: 0.08378550655214656 Q0 f: 5.24212 GHz T1: 51.2 µs T2: 15.4 µs eg: 0.0009443532335046134 er: 0.048 Q1 f: 5.30743 GHz T1: 59.9 µs T2: 63.8 µs eg: 0.0006867731322012238 er: 0.035 Q2 f: 5.35152 GHz T1: 29.5 µs T2: 41.7 µs eg: 0.00197489316929661 er: 0.055 Q3 f: 5.41293 GHz T1: 29.2 µs T2: 20.2 µs eg: 0.0036932423737144893 er: 0.326 Q4 f: 5.18921 GHz T1: 51.8 µs T2: 24.1 µs eg: 0.00197489316929661 er: 0.083</code></pre> <p><img alt="A circuit to entangle two atoms and comparing operation effect on the basis of unentangled pair" src="https://gauravrozatkar200075344.files.wordpress.com/2018/04/visualibmqasm.png?w=756"></p> <p><img alt="enter image description here" src="https://gauravrozatkar200075344.files.wordpress.com/2018/04/capture1.png"></p> <p>As the result confirms the occurrence of the qubit in a pattern of XXXY or XXYX ( X=0|1 Y=0|1 ) which indicate the change in qubit[0] with respect to qubit<a class="wikilink" href="/g8bpj/wiki/1/" rel="nofollow">1</a> in other words qubit[0] and qubit<a class="wikilink" href="/g8bpj/wiki/1/" rel="nofollow">1</a> are entangled together. </p>
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