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Aleph - 0.26.0

🚀 Highlights​

  • Scalar-type-independent factory function names for improved ergonomics when building tensors.
  • New tensor shape manipulation methods: transpose, flatten, and squeeze.
  • Element-wise tensor-scalar operations: addition, subtraction, multiplication, and division.
  • Unified API: random_tensor, filled_tensor, zero_tensor, delta_tensor, uninitialized_tensor.

✨ New Features​

  • Real and complex tensors now support .conjugate().
  • Tensor Method transpose(tensor, permutation): permutes tensor dimensions with validation.
  • Tensor Method flatten(tensor): reshapes tensor into a order 1 tensor.
  • Tensor Method squeeze(tensor): removes all dimensions of size 1 from a tensor.
  • Tensor-Scalar Operations: tensor + scalar, scalar + tensor, tensor - scalar, scalar - tensor for element-wise arithmetic.

🛠 Improvements​

🐛 Fixes​

  • Improved numerical stability of DMRG with large numbers of sites.

⚙️ Internal / Technical Changes​

  • Re-implement tensor contraction to reduce compile times.

⚠️ Breaking Changes​

  • Tensor factory functions renamed: random_real_tensor → random_tensor, filled_complex_tensor → filled_tensor, etc...
    • All factory calls can specify the scalar type by parameters: as_real or as_complex (e.g., random_tensor([2, 3], as_complex)).
    • Default scalar type is complex; You must use as_real for real-valued tensors.

🧪 Migration Notes​