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Observation of parity-time symmetry breaking in a single-spin system
TLDR
It is shown that non-Hermitian physics can be found in a solid-state quantum system through a protocol, termed dilation, which transformed a PT-symmetric Hamiltonian into a Hermitian one, and the quantum state evolutions ranging from regions of unbroken to broken PT symmetry have been observed with a single nitrogen-vacancy center in diamond.
Quantum factorization of 143 on a dipolar-coupling nuclear magnetic resonance system.
TLDR
An improved adiabatic factoring algorithm and its experimental realization to factor the number 143 on a liquid-crystal NMR quantum processor with dipole-dipole couplings is reported, which is believed to be the largest number factored in quantum-computation realizations.
Experimental observation of Lee-Yang zeros.
TLDR
The first observation of Lee-Yang zeros is reported, by measuring quantum coherence of a probe spin coupled to an Ising-type spin bath, and the quantum evolution of the probe spin introduces a complex phase factor and therefore effectively realizes an imaginary magnetic field.
Experimental realization of quantum games on a quantum computer.
TLDR
It is shown that the game exhibits an intriguing structure as a function of the amount of entanglement with two thresholds which separate a classical region, an intermediate region, and a fully quantum region.
Quantum adiabatic algorithm for factorization and its experimental implementation.
TLDR
An adiabatic quantum algorithm capable of factorizing numbers, using fewer qubits than Shor's algorithm, is proposed, implemented in a NMR quantum information processor and experimentally factorize the number 21.
Preserving electron spin coherence in solids by optimal dynamical decoupling
TLDR
Optimal dynamical decoupling may be applied to other solid-state systems, such as diamonds with nitrogen-vacancy centres, and so lay the foundation for quantum coherence control of spins in solids at room temperature.
Experimental realization of a quantum support vector machine.
TLDR
A quantum machine learning algorithm is demonstrated to implement handwriting recognition on a four-qubit NMR test bench and learns standard character fonts and then recognizes handwritten characters from a set with two candidates.
NMR implementation of a molecular hydrogen quantum simulation with adiabatic state preparation.
TLDR
An NMR implementation simulating the hydrogen molecule (H2) in a minimal basis to obtain its ground-state energy is reported, achieving a 45-bit estimation of the energy value.
Measuring out-of-time-order correlators on a nuclear magnetic resonance quantum simulator
The idea of the out-of-time-order correlator (OTOC) has recently emerged in the study of both condensed matter systems and gravitational systems. It not only plays a key role in investigating the
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