Scalable preparation of matrix product states with sequential and brick wall quantum circuits [0.03%]
基于顺序和砌体墙量子线路的矩阵产性态的大规模制备
Tomasz Szołdra,Rick Mukherjee,Peter Schmelcher
Tomasz Szołdra
Preparing arbitrary quantum states requires exponential resources. Matrix product states (MPS) admit more efficient constructions, particularly when accuracy is traded for circuit complexity. Existing approaches to MPS preparation mostly re...
An optically pumped magnetic gradiometer for the detection of human biomagnetism [0.03%]
一种用于探测人体生物磁的光学泵浦磁梯度仪
Harry Cook,Yulia Bezsudnova,Lari M Koponen et al.
Harry Cook et al.
We realise an intrinsic optically pumped magnetic gradiometer based on non-linear magneto-optical rotation. We show that our sensor can reach a gradiometric sensitivity of 18 fT cm-1Hz-1 and can reject common mode homogeneous magnetic field...
Nicholas T Bronn,Vivekananda P Adiga,Salvatore B Olivadese et al.
Nicholas T Bronn et al.
We demonstrate a pogo pin package for a superconducting quantum processor specifically designed with a nontrivial layout topology (e.g., a center qubit that cannot be accessed from the sides of the chip). Two experiments on two nominally id...
Amir Kalev,Carl A Miller
Amir Kalev
A game is rigid if a near-optimal score guarantees, under the sole assumption of the validity of quantum mechanics, that the players are using an approximately unique quantum strategy. Rigidity has a vital role in quantum cryptography as it...