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Tag Archives: Quantum Physics
Universal Quantum Logic through Spin Swapping
Researchers have demonstrated quantum gate operations in a system where voltage pulses cause neighboring electron spins to swap with one another. Continue reading
A Dense, Cold Gas of EuropiumAtoms
A Bose-Einstein condensate of europium atoms provides a new experimental platform for studying quantum spin interactions. Read more at APS Physics…
Expanding Universe in the Lab
Researchers control the speed of sound in an ultracold gas, mimicking features of a curved spacetime and reproducing quantum field behavior predicted in early Universe models. Continue reading
Boron Nitride with a Twist Could Lead to New Way to Make Qubits
Easy control over bright emissions from the crystalline material offer a route toward scalable quantum computing and sensing. Continue reading
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Tagged Berkeley Lab, Materials Sciences, Microscopy, Quantum Physics
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An Exotic Fractional Quantum Hall State
The even-denominator state appears in a 2D quasiparticle system, but researchers still can’t explain its origin. Continue reading
Quantum Thermal Transistor Amplifies Heat Currents
A three-qubit transistor design offers a way to manipulate the system’s heat flow by hitting one of the qubits with a laser. Continue reading
Parametric Amplification for Silicon Quantum Devices
A new design based on the quantum capacitance of a silicon quantum dot could enable scalable, high-fidelity qubit readout. Continue reading
Heat Leaks from Trapped-Ion Qubits
By determining whether two qubits are coupled to a third “hidden” one, researchers can detect whether energy is irreversibly lost from a quantum system. Read more in APS Physics…
Extracting the Spin and Valley Information of Electrons
An electron’s spin and valley information can be determined by monitoring how easily that electron passes through a qubit. Read more in APS Physics…
Quantum Measurement Strikes a Balance
An experiment demonstrates the trade-off between measurement and total information content—comprising gain, disturbance, and reversibility—in a quantum system. Continue reading